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Добірка наукової літератури з теми "Streptococcus pneumonias"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Streptococcus pneumonias"

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Martynova, A. V., L. A. Balabanova, and O. A. Chulakova. "MULTILOCI SEQUESTERANT STRAINS OF STREPTOCOCCUS PNEUMONIAE ISOLATED FROM ELDERLY PATIENTS WITH COMMUNITY ACQUIRED PNEUMONIA." Bulletin of Siberian Medicine 13, no. 3 (June 28, 2014): 40–45. http://dx.doi.org/10.20538/1682-0363-2014-3-40-45.

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Анотація:
Comuunity-acquired pneumonias in aged patients is the significant epidemiology problem for the public health of almost all the countries. Even more important the problem of microbiological monitoring and epidemiology surveillance for the S. pneumoniae strains as one of the ubiquitous pathogens causing as the community-acquired pneumonias as well the other infections of respiratory tract, what defines their different epidemiological meaning.Multilocus sequence typing is the perspective method of molecular epidemiological surveillance allowing to define the epidemiologically dangerous clones of the ubiquitous microorganisms as Streptococcus pneumomiae. The aim of our research was to conduct the multilocus sequence typing of pneumococci strains isolated in patients with community acquired pneumonias, bronchitis in aged patients.Materials and methods. There were taken 14 strains of S. pneumoniae, isolated in patients with community-acquired pneumonias (seven of them were multiresistant), eight strains were isolated from patients with the chronical onstructive lung diseases and four strains from carriers. Multilocus sequence typing was conduected according to method to M.C. Enright and B.G. Spratt (1998).Results. The strains, isolated in all populations were the related isolates of the species S. pneumoniae, the most of them had the unique genotype defining the sequence type for every strain. There were 6 strains of Taiwan 19F-14 genotype from 14 strains isolated in aged patients with community-acquired pneumonia. Among strains isolated from carriers there were prevailing the strai of R6 genotype.Conclusion. Multilocus sequence typing allows to identify the new genotypes and to prognose the appearing of epidemiologically dangerous strains with new peculiarities.
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Schleupner, Charles J., and David K. Cobb. "A Study of the Etiologies and Treatment of Nosocomial Pneumonia in a Community-Based Teaching Hospital." Infection Control & Hospital Epidemiology 13, no. 9 (September 1992): 515–25. http://dx.doi.org/10.1086/646591.

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AbstractObjective:To compare the frequency of the pathogens of nosocomial pneumonia in a community-based teaching hospital to the frequencies previously published, and to evaluate recommendations for the therapy of nosocomial pneumonia in this setting.Design:Retrospective review of prospectively acquired data accrued during 9 randomized single-blinded and 4 single-agent investigational antibiotic studies for the therapy of pneumonia in hospitalized patients between 1981 and 1989.Setting:The study was performed at a university affiliated, community-based teaching Department of Veterans Affairs Medical Center.Patients:Patients were hospitalized on the acute medical/surgical and intermediate medicine wards. Informed consent was obtained prior to enrolling patients into the respective antimicrobial studies. Pneumonia was documented radiographicahy and clinically for each patient.Results:Two hundred thirty-one episodes of nosocomial pneumonia were treated. Overall, 51% of pneumonias were caused by Streptococcus pneumoniae or Hemophilus influenzae with or without other organisms that were not gram-negative bacilli. Gram-negative bacilli, with or without other organisms, accounted for only 26% of all nosocomial pneumonias. Overall, monotherapy with a cephalosporin (usually a broad-spectrum agent) was equally efficacious compared with combination therapy (87% versus 81%, respectively). Cure rates for nosocomial pneumonias from gram-negative bacilli treated with these 2 therapies also were similar (70% versus 60%, respectively).Conclusions:In nontertiary care settings, gram-negative bacilli may cause fewer episodes of nosocomial pneumonia (26% in this study) than noted by previously published reports, which indicated that these organisms account for 50% of nosocomial pneumonias. Further, S pneumoniae and H influenzae may account etiologicahy for many of these nosocomial pneumonias. Monotherapy with an extended-spectrum cephalosporin may be more appropriate than combined treatment with a b-lactam and an aminoglycoside in a nontertiary care setting, thereby reducing potential toxicity in an older, hospitalized patient population.
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Чулакова, O. Chulakova, Балабанова, L. Balabanova, Мартынова, A. Martynova, Шепарев, and A. Sheparev. "Molecular-Epidemiological Monitoring of Strains of Streptococcus Pneumoniae Isolated from Elderly Patients with Community-Acquired Pneumonia." Journal of New Medical Technologies 21, no. 3 (September 5, 2014): 69–72. http://dx.doi.org/10.12737/5902.

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Анотація:
Community-acquired pneumonias in the elderly patients are the significant epidemiological problem for the public health of almost all countries. Especially urgent is the problem of microbiological and epidemiological monitoring for the S.pneumoniae strains as one of the ubiquitary pathogens, causing the community-acquired pneumonias and the other respiratory tract infections of various severities, what is determined by their different epidemiological significance. Multiloci sequesterant is a promising method of molecular-epidemiological monitoring, identifying epidemically dangerous clones such ubiquitaria of the pathogen as S.pneumoniae. The purpose of this research was to carry out the multilocus sequence typing of strains of pneumococcus isolated in the elderly patients with community-acquired pneumonias, bronchitis. Materials and methods were 14 strains of S.pneumoniae, isolated in patients with community-acquired pneumonias (7 of them – multiresistant), 8 strains were isolated from the patients with the chronic pulmonary obstructive diseases and 4 strains – from carriers of activators. Multilocus sequence typing was carried out according to method of M.C. Enright and B. G. Spratt (1998). Results: all strains, isolated in all populations were the related isolates of the species Streptococcus pneumoniae, the most of them (18 of 26) have a unique genotype, determining the presence of one sequence-type for each strain. From 14 strains, isolated from the elderly with community-acquired pneumonia, 6 were related to the profile Taiwan 19F-14. Among strains isolated from the patients with COPD, the prevalence of any genotype wasn’t identified. Conclusion: multilocus sequence typing allows to identify the new genotypes and to predict the appearing of epidemiologically dangerous strains with new proprieties.
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Szabó, Bálint Gergely, Katalin Szidónia Lénárt, Béla Kádár, Andrea Gombos, Balázs Dezsényi, Judit Szanka, Ilona Bobek, and Gyula Prinz. "A Streptococcus pneumoniae (pneumococcus) -infekciók ezer arca." Orvosi Hetilap 156, no. 44 (November 2015): 1769–77. http://dx.doi.org/10.1556/650.2015.30293.

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Incidence and mortality rates of infections caused by Streptococcus pneumoniae (pneumococcus) are high worldwide and in Hungary among paediatric as well as adult populations. Pneumococci account for 35–40% of community acquired adult pneumonias requiring hospitalization, while 25–30% of Streptococcus pneumoniae pneumonias are accompanied by bacteraemia. 5–7% of all infections are fatal but this rate is exponentially higher in high risk patients and elderly people. Mortality could reach 20% among patients with severe invasive pneumococcal infections. Complications may develop despite administration of adequate antibiotics. The authors summarize the epidemiology of pneumococcal infections, pathogenesis of non-invasive and invasive disease and present basic clinical aspects through demonstration of four cases. Early risk stratification, sampling of hemocultures, administration of antibiotics and wider application of active immunization could reduce the mortality of invasive disease. Anti-pneumococcal vaccination is advisable for adults of ≥50 years and high risk patients of ≥18 years who are susceptible to pneumococcal disease. Orv. Hetil., 2015, 156(44), 1769–1777.
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Nikolenko, V. V., A. V. Nikolenko, and M. R. Minikeeva. "Nutritive status changes, studied in hiv-positive patients with pneumonias, caused by Streptococcus pneumoniae." Perm Medical Journal 35, no. 4 (December 15, 2018): 14–19. http://dx.doi.org/10.17816/pmj35414-19.

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Aim. To study the changes in nutritive status of HIV-positive patients, hospitalized with community-acquired pneumonias, caused by Streptococcus pneumoniae. Materials and methods. During 2014–2017, clinicolaboratory examination of 676 HIV-positive patients was carried out on the basis of Perm Regional Clinical Infectious Hospital. There were formed the groups of “observation”, including patients with pneumonias, caused by Streptococcus pneumoniae with lethal outcomes, and groups of “comparison”, including patients, discharged from hospital in satisfactory status. Results. Negative dynamics of nutritive status, caused by progression of the main disease and addition of bacterial agent was revealed. The moderately severe and severe changes were registered in patients with lethal outcomes already at the moment of hospitalization. Conclusions. Direct correlation between the protein-energy insufficiency and the number of life-threatening complications was determined.
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Doerschuk, C. M., R. K. Winn, H. O. Coxson, and J. M. Harlan. "CD18-dependent and -independent mechanisms of neutrophil emigration in the pulmonary and systemic microcirculation of rabbits." Journal of Immunology 144, no. 6 (March 15, 1990): 2327–33. http://dx.doi.org/10.4049/jimmunol.144.6.2327.

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Abstract Neutrophil (PMN) migration in the systemic and pulmonary circulation of rabbits was compared by using different inflammatory stimuli to determine the role of the leukocyte adhesion complex, CD11/CD18, in each of these vascular beds. The adhesion complex was blocked by administering the anti-CD18 mAb 60.3. The data show that mAb 60.3 blocks PMN emigration into inflammatory foci in the abdominal wall produced by implanting sponges containing either hydrochloric acid, Streptococcus pneumoniae, Escherichia coli endotoxin, or PMA. mAb 60.3 also inhibited PMN emigration in response to peritoneal instillation of S. pneumoniae. The effect of mAb 60.3 on PMN emigration in the lungs varied depending upon the stimulus. PMN failed to migrate into the PMA-induced pneumonia; however, mAb 60.3 pretreatment only partially inhibited endotoxin-induced pneumonia and did not inhibit S. pneumoniae or hydrochloric acid-induced pneumonias. PMN lavaged from the alveolar spaces in the Streptococcal pneumonia had similar quantities of mAb 60.3 bound to their surfaces as the circulating PMN. We conclude that the CD11/CD18 complex mediates PMN adherence in the systemic circulation. However, PMN adherence in the pulmonary circulation may occur by either CD18-dependent or -independent mechanisms that are specific to the inciting stimulus.
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Laitinen, LA, AK Miettinen, E. Kuosma, L. Huhtala, and K. Lehtomaki. "Lung function impairment following mycoplasmal and other acute pneumonias." European Respiratory Journal 5, no. 6 (June 1, 1992): 670–74. http://dx.doi.org/10.1183/09031936.93.05060670.

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We prospectively studied the lung function of 106 consecutive young patients with pneumonia. At the time of hospital admission we observed impaired spirometric function in 48% of the patients. During and following treatment, the frequency of abnormalities in pulmonary function tests decreased rapidly. However, at the 15th day of hospitalization, abnormal ventilatory function was still demonstrated in 21% of the patients. Such prolonged impairment of ventilatory function was significantly more likely to result from pneumonia caused by Mycoplasma pneumoniae than from forms caused by adenovirus or Streptococcus pneumoniae.
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Briones, Maria Luisa, José Blanquer, David Ferrando, Maria Luisa Blasco, Concepción Gimeno, and Julio Marín. "Assessment of Analysis of Urinary Pneumococcal Antigen by Immunochromatography for Etiologic Diagnosis of Community-Acquired Pneumonia in Adults." Clinical and Vaccine Immunology 13, no. 10 (October 2006): 1092–97. http://dx.doi.org/10.1128/cvi.00090-06.

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ABSTRACT The limitations of conventional microbiologic methods (CMM) for etiologic diagnosis of community pneumococcal pneumonia have made faster diagnostic techniques necessary. Our aim was to evaluate the usefulness of the immunochromatography (ICT) technique for detecting urinary Streptococcus pneumoniae antigen in the etiologic diagnosis of community-acquired pneumonias (CAP). This was a prospective study on in-patients with CAP in a tertiary hospital conducted from October 2000 to March 2004. Apart from using CMM to reach an etiologic diagnosis, we determined pneumococcal antigen in concentrated urine by ICT. We also determined the urinary pneumococcal antigen (UPA) content in patients from two control groups to calculate the specificity of the technique. One group was comprised of in-patients diagnosed with chronic obstructive pulmonary disease (COPD) or asthma, with respiratory infection, and without pneumonia; the other group included fractures. We studied 959 pneumonia patients and determined UPA content in 911 (95%) of them. We diagnosed the etiology of 253 cases (28%) using CMM; S. pneumoniae was the most common etiologic agent (57 cases). ICT analysis was positive for 279 patients (31%). Using this technique, the percentage of diagnoses of pneumococcal pneumonias increased by 26%, while the overall etiologic diagnosis increased from 28 to 49%. The technique sensitivity was 81%; the specificity oscillated between 80% in CAP with nonpneumococcal etiology and 99% for patients with fractures without infections. Determination of UPA is a rapid, simple analysis with good sensitivity and specificity, which increased the percentage of etiologic diagnoses. Positive UPA may persist in COPD patients with probable pneumococcal colonization or recent pneumococcal infections.
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Cirino, Luís Marcelo Inaco, Filumena Maria da Silva Gomes, and Bernardo Nogueira Batista. "The etiology of extensive pleural effusions with troublesome clinical course among children." Sao Paulo Medical Journal 122, no. 6 (December 2004): 269–72. http://dx.doi.org/10.1590/s1516-31802004000600008.

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CONTEXT: In São Paulo, pneumonia is the main infectious cause of death among children. Parapneumonic pleural effusion is a possible complication and has to be treated surgically when the patient does not respond to antibiotics. OBJECTIVE: Assessment of the etiology of complicated parapneumonic pleural effusions that needed surgical intervention. TYPE OF STUDY: Retrospective study. SETTING: University hospital of the University of São Paulo. METHOD: Analysis of 4,000 files on children hospitalized with pneumonia from November 1986 to November 1996 had shown that 115 of these children presented a total of 117 cases of pleural empyema that required surgical procedures. The children's clinical condition was assessed in relation to radiological findings and to their nutrition and immunization status. Previous antimicrobial therapy and pleural effusion bacterioscopy were also evaluated. RESULTS: Streptococcus pneumoniae was the agent found most commonly, as frequently in blood cultures as in pleural effusions. DISCUSSION: Data on vaccination coverage, birth weight and nutritional status are analyzed and compared to other publications. We observed that pleural effusion has a high potential for discomfort, and in most cases it is not a complication of the first pulmonary disease episode. Previous use of antibiotics interfered with culture positivity. The agent most frequently found was Streptococcus pneumoniae, which is in accordance with the findings from other authors. Nonetheless, the antibiotics used to treat the patients after the procedure were the same used in non-complicated pneumonias, which has led us to conclude that the worse outcome in this cases was not due to drug resistance. CONCLUSION: The bacteriological profile in our series of complicated pneumonia cases was similar to what has been described for non-complicated pneumonia cases. Future studies will be necessary to determine why these children presented a worse outcome.
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Ahn, Danielle, and Alice Prince. "Participation of Necroptosis in the Host Response to Acute Bacterial Pneumonia." Journal of Innate Immunity 9, no. 3 (2017): 262–70. http://dx.doi.org/10.1159/000455100.

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Common pulmonary pathogens, such as Streptococcus pneumoniae and Staphylococcus aureus, as well as the host-adapted pathogens responsible for health care-associated pneumonias, such as the carbapenem-resistant Klebsiella pneumoniae and Serratia marcecsens, are able to activate cell death through the RIPK1/RIPK3/MLKL cascade that causes necroptosis. Necroptosis can influence the pathogenesis of pneumonia through several mechanisms. Activation of this pathway can result in the loss of specific types of immune cells, especially macrophages, and, in so doing, contribute to host pathology through the loss of their critical immunoregulatory functions. However, in other settings of infection, necroptosis promotes pathogen removal and the eradication of infected cells to control excessive proinflammatory signaling. Bacterial production of pore-forming toxins provides a common mechanism to activate necroptosis by diverse bacterial species, with variable consequences depending upon the specific pathogen. Included in this brief review are data demonstrating the ability of the carbapenem-resistant ST258 K. pneumoniae to activate necroptosis in the setting of pneumonia, which is counterbalanced by their suppression of CYLD expression. Exactly how necroptosis and other mechanisms of cell death are coregulated in the response to specific pulmonary pathogens remains a topic of active investigation, and it may provide potential therapeutic targets in the future.
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Дисертації з теми "Streptococcus pneumonias"

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Yoshioka, Cristina Ryoka Miyao. "Estudo das pneumonias causadas por Streptococcus pneumoniae em crianças internadas na enfermaria de pediatria do Hospital Universitário da Universidade de São Paulo." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/5/5141/tde-07122009-185246/.

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Introdução: Atualmente a incidência anual de pneumonia adquirida na comunidade nos países em desenvolvimento é de 150,7 milhões de casos entre crianças menores de 5 anos de idade , dos quais 11 a 20 milhões (7-13%) necessitam de internação hospitalar devido à gravidade. O tratamento geralmente é empírico mas o Streptococcus pneumoniae é o principal agente etiológico bacteriano.É necessário manter monitoramento dos sorotipos e padrão de resistência para melhor orientação terapêutica. Metodologia: Estudo de coorte retrospectivo com inclusão de 107 crianças com diagnóstico clínico e radiológico de pneumonia e com isolamento de Streptococcus pneumoniae em sangue e ou líquido pleural no período de janeiro de 2003 a outubro de 2008. Realizado determinação de concentração inibitória mínima (MIC) para penicilina e antibiograma para outros antimicrobianos. A sensibilidade para penicilina utilizada foi conforme Clinical and Laboratory Standards Institute (CLSI ) de 2008. Realizado sorotipagem de 96 cepas de pneumococos (89,7%) e analisados os dados da população em estudo e da evolução clínica. Resultados:Cerca de 47,5% das internações na enfermaria foram por pneumonia ou broncopneumonia e a média de positividade em cultura para pneumococo (sangue e ou líquido pleural) foi de 2,5%. Houve uma sazonalidade bem definida da pneumonia pneumocócica. Cerca de 70% ocorreram nos meses de junho a outubro. A mediana de idade foi de 23 meses (82,2%<5anos); predomínio do sexo masculino (58,9%);utilização de antibioticoterapia nos dois meses prévios à internação de 23,4%; freqüência em creche no menores de 2 anos de 36,4%; apenas um caso com vacinação heptavalente completa; doença associada em 44,9% sendo a mais freqüente a sibilância( 77,1%); tempo de febre e de sintomas respiratórios antes da admissão foi de 4 dias;necessidade de oxigenoterapia não invasiva em 70,1% com tempo médio de utilização de 4 dias;necessidade de ventilação mecânica em 19,6%, mediana do tempo de internação de 9 dias.Em 62% houve complicações sendo as mais freqüentes: empiema (53%) e efusão pleural não complicada (42%). As crianças com empiema tiveram mais pneumonia necrotizante, abscesso pulmonar, sepse, pneumotórax, necessidade de decorticação e ainda maior mortalidade (todas com p<0,05). As crianças com complicações tiveram mais dias de sintomas respiratórios antes da admissão (3x5dias), mais tempo de febre após o início de antibiótico (1x4,5dias), necessitaram de oxigenoterapia não invasiva(58,5x77,3%) e ventilação mecânica (7,3x27,3%) por tempo maior e permaneceram por mais tempo internados (5x12 dias). Das 107 cepas de pneumococo, 100 (93,5%) foram sensíveis à penicilina e 7 (6,5%) de sensibilidade intermediária. Todas as cepas testadas foram sensíveis para rifampicina e vancomicina e ainda mantiveram boa sensibilidade para clindamicina, cloranfenicol, ceftriaxone, eritromicina e levofloxacina. Cinco cepas foram multiresistentes. Notou-se que a média geométrica das concentrações inibitórias mínimas (GMC) para penicilina foram maiores nas crianças com complicações. Os sorotipos mais freqüentes foram: 14(36,5%), 1(16,7%) , 5(14,6%) e 6B(6,3%). O sorotipo 14 apresentou a maior GMC para penicilina e houve um aumento progressivo no decorrer dos anos de estudo. A cobertura dos sorotipos pela vacina heptavalente seria de 53,1% e esta cobertura menor se deve principalmente ao sorotipo 1 e 5, que corresponde a 31,3% dos casos. A cobertura dos sorotipos associados à resistência seria de 94,2%. A cobertura pela vacina 10-valente seria de 86,5% e com a 13-valente seria de 96,9%. Três casos que evoluíram para óbito (2,8%) tinha mediana de idade de 18 meses, todos do sexo masculino, todos com concentração inibitória mínima para penicilina menor ou igual 1g/mL, todos evoluíram com empiema e sepse. Dois foram do sorotipo 5 e um do sorotipo 14. Conclusões: Aproximadamente 2,5% das crianças internadas com diagnóstico de pneumonia foram diagnosticadas como pneumonia pneumocócica.Verificamos uma sazonalidade bem definida.Houve complicações em 62% dos casos. As mais freqüentes foram : empiema e a efusão pleural não complicada. Evidenciou-se uma GMC para penicilina maior nas crianças com complicações comparadas às crianças com ausência de complicações. Os sorotipos mais freqüentes foram 14,1 ,5 e 6B sendo que os sorotipos 1 e 5 totalizam 31,3%. A cobertura pela vacina heptavalente dos sorotipos isolados seria de 53,1%. A sensibilidade para penicilina dos pneumococos isolados de pneumonia foi de 93,5%. Assim, a opção terapêutica continua sendo a penicilina.
Introduction: Currently, the annual incidence of the acquired pneumonia in the developing country communities are around 150.7 million cases, among childrens under 5 years of age, and 11 to 20 million (7-13%) of those require hospitalization due to their gravity. In general, the treatments used to be empirical, however, it is important to be noted that Streptococcus pneumoniae is far the major bacterial etiologic agent. It is necessary to keep monitoring the serotypes and the pattern of resistance in order to improve the therapy guidance. Methodology: Retrospective cohort study with inclusion of the 107 childrens with clinical and radiological diagnosis of the pneumonia, and the isolation of Streptococcus pneumoniae in the blood and/or pleural fluid during the period of January 2003 to October 2008. It was performed determination of the minimum inhibitory concentration (MIC) related to the penicillin and other antibiotics. The sensitivity analysis to the penicillin was based on Clinical and Laboratory Standards Institute (CLSI), 2008, recommendations. They were performed serotyping in 96 pneumococcal strains (89.7%) and they were analyzed datas referred to the considered population and their clinical course. Results: About 47.5% of admissions in the ward were caused by pneumonia or bronchopneumonia, and the average positive occurrences in the pneumococcal (blood and / or pleural) culture were 2.5%. It was noted a clear seasonality phenomena of the pneumococcal pneumonia. About 70% of the cases occurred during months of June to October. The median age was 23 months (82.2%<5 years); with predominance of males (58.9%); in the 23,4% of the cases the antibiotic therapy was used during two months prior to the admission; the daycare frequency of the childs less than 2 years were 36.4%; only one case with complete vaccination heptavalent; associated disease was detected in the 44.9% of the cases and the most frequent was wheezing (77.1%); time of fever and respiratory symptoms before admission were 4 days; the need for noninvasive oxygen therapy occurred in 70.1% being 4 days of the average time of the use; the need for mechanical ventilation occurred in 19.6%; the median period of stay were 9 days. In 62% of the cases there were the most frequent complications: empyema (53%) and non-complicated pleural effusion (42%). The childrens with empyema had more necrotizing pneumonia, lung abscess, sepsis, pneumothorax, need for decortication, and even higher mortality (all with p<0.05). The childrens with complications had more days of respiratory symptoms before admission (3x5days), more time of the fever after initiation with antibiotic (1x4, 5days), they need noninvasive oxygen therapy (58,5 x77, 3%) and mechanical ventilation (7 , 3x27, 3%) for more time and remained hospitalized during longer period(5x12 days). Among 107 pneumococcal strains, 100 (93.5%) were susceptible to penicillin and 7 (6.5%) presented intermediate sensitivity. All strains tested were sensitive to rifampicin and vancomycin, and they maintained good sensitivity to clindamycin, chloramphenicol, ceftriaxone, erythromycin and levofloxacin. Five strains were multi-resistant. It was noted that the geometric mean of minimum inhibitory concentrations (GMC) to penicillin were higher in children with complications. The most frequent serotypes were: 14 (36.5%), 1 (16.7%), 5 (14.6%) and 6B (6.3%). The serotype 14 presented the highest GMC for penicillin and it was verified a progressive increase during the years of the study. The coverage of serotypes by the heptavalent vaccine would be cover 53.1% and this less coverage is represented by serotype 1 and 5, which corresponds to 31.3% of the cases. The coverage of serotypes associated with resistance would be 94.2%. The coverage of the 10-valent vaccine would be 86.5% and for 13-valent would be 96.9%. Three cases that carried to died (2.8%) had median age of 18 months, all they male, all they with minimum inhibitory concentration for penicillin <= 1g/mL, all they progressed to empyema and sepsis. Two of them were serotype 5 and one of them was serotype 14. Conclusions: Approximately 2.5% of children were admitted with diagnosis of pneumonia were diagnosed as pneumococcal pneumonia. It was verified a clear seasonality phenomena. They were observed complications in 62% of the cases. The most frequent were: empyema and non-complicated pleural effusion cases. It was confirmed a higher GMC for penicillin in children with complications compared to the children without complications. The most frequent serotypes were 14, 1, 5 and 6B and the serotypes 1 and 5 accounted 31.3%. The coverage of heptavalent vaccine for the isolated serotypes would be 53.1%. The sensitivity to the penicillin of the isolated pneumococcal was 93.5%. Therefore, the therapy option remains being the penicillin.
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2

Bazaz, Rohit. "The effect of Streptococcus pneumoniae pneumonia on atherosclerosis." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/16897/.

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3

Koppe, Uwe Moritz Eberhard. "Role of type I interferons in Streptococcus pneumoniae pneumonia." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2012. http://dx.doi.org/10.18452/16532.

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Streptococcus pneumoniae ist die häufigste Ursache für ambulant erworbene Pneumonien weltweit. Daher müssen die Wirts-Pathogen-Interaktionen erforscht werden, um neue Therapiestrategien zu entwickeln. In dieser Studie habe ich 1. den Typ I Interferon (IFN)-stimulierenden Signalweg des angeborenen Immunsystems in Pneumokokken-infizierten Wirtszellen sowie 2. dessen Bedeutung in der Pneumokokkenpneumonie untersucht. Humane und murine Makrophagen, aber nicht alveolare Epithelzellen, produzierten Typ I IFNs nach Infektion mit S. pneumoniae. Dieses war abhängig vom Virulenzfaktor Pneumolysin und erforderte sowohl die Phagozytose der Bakterien als auch die Ansäuerung der Endosomen. Die Induktion der Typ I IFNs wird durch einen zytosolischen Signalweg vermittelt, welcher wahrscheinlich DNA erkennt und sowohl das Adapterprotein STING als auch den Transkriptionsfaktor IRF3 aktiviert. Typ I IFNs, welche von infizierten Makrophagen gebildet wurden, regulierten die Expression von IFN-stimulierten Genen (ISGs) und Chemokinen in Makrophagen und co-kultivierten alveolaren Epithelzellen in vitro und in Mauslungen in vivo. In einem murinen Pneumoniemodell hatten die Typ I IFNs jedoch einen negativen Effekt für den Wirt. Mäuse mit einem Defekt im Typ I IFN-Rezeptor oder mit einem Knockout im Typ I und Typ II IFN-Rezeptor hatten eine signifikant geringere Bakterienlast in der Lunge und eine verminderte Reduktion der Körpertemperatur und des Körpergewichtes als wild-typ Mäuse. Diese Effekte waren nicht durch Änderungen in der Zellrekrutierung oder durch Änderungen der Zytokin-/Chemokinexpression erklärbar. Zusammenfassend lässt sich feststellen, dass Typ I IFNs durch Pneumokokken induziert werden, aber dass sie trotz einiger positiver Effekte auf die Expression von ISGs einen negativen Gesamteffekt in einem murinen Pneumoniemodell aufweisen. Ein detailliertes Verständnis der Typ I IFN-Antwort während der Pneumokokkeninfektion kann die Entwicklung neuer Therapiestrategien unterstützen.
Streptococcus pneumoniae is the leading cause of community-acquired pneumonia world-wide. A detailed understanding of the host-pathogen interactions is required in order to foster the development of new therapeutic strategies. Here, I (I) characterized an innate immune recognition pathway that senses pneumococcal infection and triggers the production of type I interferons (IFNs), and (II) examined the role of type I IFNs in pneumococcal pneumonia in mice. Human and murine macrophages, but not alveolar epithelial cells, produced type I IFNs after infection with S. pneumoniae. This induction was dependent on the virulence factor pneumolysin, the phagocytosis of the bacteria, and the acidification of the endosome. Moreover, it appeared to be mediated by a cytosolic DNA-sensing pathway involving the adaptor molecule STING and the transcription factor IRF3. Type I IFNs produced by S. pneumoniae-infected macrophages positively regulated the expression of IFN-stimulated genes (ISGs) and chemokines in macrophages and co-cultured alveolar epithelial cells in vitro and in mouse lungs in vivo. However, in a murine model of pneumococcal pneumonia, type I IFN signaling was detrimental to the host defense. Mice deficient in the type I IFN signaling or double deficient in type I and type II IFN signaling had a significantly reduced bacterial load in the lung and a diminished reduction of body temperature and body weight compared to wild-type mice. The decreased susceptibility of the knockout mice was unlikely to be attributable to alterations in cell recruitment or cytokine/chemokine production. In conclusion, type I IFNs are induced during pneumococcal infection. However, despite their positive effects on the expression of some ISGs and chemokines, they negatively affect the outcome of pneumococcal pneumonia in an in vivo mouse model. Targeting the type I IFN system could potentially be an effective way in enhancing the immune response in patients with S. pneumoniae pneumonia.
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4

McNamee, Lynnelle Ann. "Effects of a primary influenza infection on susceptibility to a secondary Streptococcus pneumoniae infection." Diss., Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/mcnamee/McNameeL1206.pdf.

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5

Silva, Júnior Jailton de Azevedo. "Estudo da colonização nasofaringeana por Streptococcus pneumoniae em crianças com suspeita clínica de pneumonia." reponame:Repositório Institucional da FIOCRUZ, 2011. https://www.arca.fiocruz.br/handle/icict/4220.

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Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, Bahia, Brasil
Streptococcus pneumoniae constitui um dos mais importantes patógenos bacterianos do trato respiratório, podendo causar infecções invasivas e não invasivas, levando a altas taxas de morbi-mortalidade, particularmente em crianças menores de cinco anos de idade. A bactéria ganha acesso ao hospedeiro através da colonização da nasofaringe, que representa um importante reservatório para a transmissão deste patógeno na comunidade, contribuindo para a disseminação horizontal de S. pneumoniae entre os indivíduos de uma população. No presente estudo, procuramos caracterizar o perfil de colonização nasofaringeana por S. pneumoniae em pacientes menores de cinco anos de idade com suspeita clínica de pneumonia, atendidos na Unidade de Saúde de São Marcos, Bairro de Pau da Lima, Salvador, no ano de 2009. Um total de 205 swabs foram coletados entre as crianças consideradas elegíveis para o estudo. Os isolados de S. pneumoniae foram identificados através de métodos microbiológicos clássicos e a determinação do sorogrupo/sorotipo foi realizada empregando-se a técnica de Multiplex-PCR. A sensibilidade a sete antimicrobianos foi testada através da técnica de microdiluição em caldo, sendo que os isolados com CIM para penicilina ≥ 0,125 μg/mL foram considerados não-susceptíveis. A técnica de PFGE foi realizada para 26 isolados correspondentes aos sorotipos mais frequentes e associados a não-sensibilidade à penicilina (sorotipos 14, 19F e 23F). Um total de 72 (35,1%) crianças foram diagnosticadas com pneumonia, sendo 39 (54,2%) menores de dois anos de idade. A taxa de colonização geral foi de 50,2%, não havendo diferença entre essas taxas quando se considerou o grupo de crianças confirmadas e suspeitas para pneumonia. Crianças na faixa etária de 36 a 47 meses formaram o grupo com maior risco de ter pneumonia bacteriana (OR: 3.17 [1.29-7.88]). Entre os sorotipos encontrados, o sorogrupo 6 (6A/6B) (17,3%) foi predominante, seguido dos sorotipos 14 (15,4%), 19F (10,6%), sorogrupo 15 (15B/15C) (9,6%), 23F (6,7%) e o sorotipo 19A (6,7%). Os demais sorotipos e sorogrupos compreenderam 33,7%. O padrão de sorotipos foi semelhante aqueles encontrados nos casos de meningite pneumocócica na cidade de Salvador. Um total de 41 isolados (39,8%) apresentaram CIM ≥ 0,125 μg/mL para penicilina e a resistência a SMX-TMP foi identificada em 69,2% dois isolados. A tipagem por PFGE identificou 11 padrões eletroforéticos, sendo que a maioria dos isolados do sorotipo 14 estavam relacionados a clones amplamente disseminados entre os casos de doença pneumocócica (“A” e “GK”). Um total de 50,5% dos isolados foram de sorotipos inclusos na vacina decavalente (PCV10) e considerando os isolados não-susceptíveis à penicilina, esta representatividade foi de 90,2%. O estudo ressalta a importância de um contínuo monitoramento do perfil de sorotipos na colonização nasofaringeana por S. pneumoniae, no período pós-vacina e da necessidade de busca de novos métodos de diagnóstico que otimizem a definição da pneumonia.
Streptococcus pneumoniae is one of the most important bacterial pathogens of the respiratory tract, causing invasive and noninvasive infections, leading to high rates of morbidity and mortality, particularly among children under five years old. The bacterium gains access to the host by colonizing the nasopharynx, which represents an important reservoir for transmission of this pathogen in the community, contributing to the horizontal spread of S. pneumoniae among individuals in a population. In this study, we sought to characterize the profile of nasopharyngeal colonization by S. pneumoniae in patients under five years of age with clinical suspicion of pneumonia seeking medical care at the Unidade de Saúde de São Marcos, District of Pau da Lima, Salvador, in 2009. A total of 205 swabs were collected from children eligible for the study. The isolates of S. pneumoniae were identified by classical methods and the determination of the serogroup / serotype was performed using the technique of multiplex-PCR. The sensitivity to seven antibiotics was tested by the microdilution broth method, and strains with MIC for penici≥lli n 0.125 mg/mL were considered non-susceptible. The PFGE technique was performed for 26 strains corresponding to serotypes more frequent and associated with nonsusceptibility to penicillin (serotypes 14, 19F and 23F). A total of 72 (35.1%) children were diagnosed with pneumonia, 39 (54.2%) less than two years old. The overall colonization rate was 50.2%, with no difference between those rates when considering the children's group confirmed and suspected to pneumonia. Children aged 36 to 47 months formed the group with higher risk for bacterial pneumonia (OR: 3.17 [1.29-7.88]). Among the serotypes, serogroup 6 (6A/6B) (17.3%) predominated, followed by serotypes 14 (15.4%), 19F (10.6%), serogroup 15 (15B/15C) (9.6%), 23F (6.7%) and serotype 19A (6.7%). The other serotypes and serogroups comprised 33.7%. The pattern of serotypes was similar to those found in cases of pneumococcal meningitis in Salvador. A total of 41 isolates (39.8%) had MIC ≥ 0.125 mg / mL and resistance to TMP-SMX was identified in 69.2% of isolates. Molecular typing identified 11 electrophoretic patterns, whereas most isolates of serotype 14 was associated with widespread clones among cases of pneumococcal disease ("A" and "GK"). The 10-valent conjugate vaccine (PCV10) implemented in Brazil shows a coverage of 50.5% from serotypes in the population and 90.2% for isolates not susceptible to penicillin. The study underscores the importance of continued monitoring of the prevalence of serotypes in nasopharyngeal colonization by S. pneumoniae, in the post-vaccine era, and the need to search for new methods for diagnosing pneumonia.
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Scholtz, Janet. "The serotypes and antimicrobial susceptibility patterns of streptococcus pneumoniae in the Cape Peninsula." Thesis, Cape Technikon, 2000. http://hdl.handle.net/20.500.11838/1464.

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Thesis (Masters Diploma(Technology))--Cape Technikon, Cape Town, 2000
Streptococcus pneumoniae (S.pneumoniae) infections are an important cause of morbidity and mortality in adults and children worldwide. Mortality rates are highest amongst the very young and the elderly. Streptococcus pneumoniae is the most common form of community acquired bacterial pneumonia. Other diseases commonly caused by Streptococcus pneumoniae include meningitis, pericarditis, bacteraemia and septicaemia. Penicillin is today still consid3red the drug of choice when treating pneumococcal infections. The emergence of resistant pneumococcal strains has made it necessary to adapt antimicrobial regimens when treating pneumococcal infections. Hansman (1967) reported the first penicillin resistant strain, which was isolated from a woman in Australia in 1967. Since then penicillin and multi-resistant Streptococcus pneumoniae strains have been observed worldwide, including South Africa. Streptococcus pneumoniae infections may be caused by anyone of the 84 serotypes recognized to date. The distribution of serotypes varies, depending on geographical area, age and site of infection. High-level penicillin resistance and multiple resistant Streptococcus pneumoniae strains have been recognised worldwide in a few pneumococcal serotypes. Pneumococcal vaccines have been used since the seventies. These capsular polysaccharide vaccines are generally recommended for at risk population such as the elderly and immunocompromised patients. This vaccine is not effective in children under 2 years old. The current vaccine in South Africa (Pneumovax, MSD) consists of purified capsular polysaccharides of 23 pneumococcal serotypes. Conjugated polysaccharide vaccines have been developed to overcome the problems of efficacy in children < 2 years old. These vaccines consist of a capsular polysaccharide linked to a protein carrier, which makes them immunogenic in infants. Clinical trials of these vaccines are currently under way to demonstrate safety, efficacy and immunogenicity. Knowledge of serotype distribution and antimicrobial susceptibility patterns are important in relation to the treatment of pneumococcal diseases and vaccination programmes.
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7

Abdeldaim, Guma M. K. "PCR detection of Streptococcus pneumoniae and Haemophilus influenzae in pneumonia patients." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl.[distributör], 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-107931.

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Ekdahl, Karl. "Immunological aspects on pneumococcal infections with special reference to bacteremic pneumococcal infections and recurrent pneumonia /." Lund : Dept. of Infectious Diseases, University of Lund, 1995. http://catalog.hathitrust.org/api/volumes/oclc/39177549.html.

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Machado, Lais Del Prá Netto. "Pneumonia bacteriana adquirida na comunidade: avaliação clínico-epidemiológica e padronização de métodos moleculares para detecção de Mycoplasma pneumoniae, Haemophilus influenzae e Streptococcus pneumoniae." reponame:Repositório Institucional da UFSC, 2015. https://repositorio.ufsc.br/xmlui/handle/123456789/158899.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Farmácia, Florianópolis, 2015.
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A pneumonia pode ser causada por diversos microrganismos e classificada de forma abrangente, havendo poucos e frágeis estudos clínicos e epidemiológicos sobre pneumonias adquiridas na comunidade (PACs). Os patógenos mais frequentes nas PACs são Streptococcus pneumoniae e Haemophilus influenzae (em pneumonias típicas) e Mycoplasma pneumoniae (em pneumonias atípicas). Assim, o objetivo deste trabalho foi padronizar uma metodologia para detecção molecular dessas bactérias em amostras de orofaringe, avaliar sua prevalência e o perfil clínico-epidemiológico de pacientes com PAC em um hospital na cidade de Blumenau/SC. Para tanto, além da técnica de PCR padronizada in house, foram realizadas culturas de raspado de orofaringe e pesquisa de anticorpos específicos para detecção de M. pneumoniae. A reação de PCR realizada com os iniciadores desenhados neste estudo para M. pneumoniae apresentou sensibilidade 10x maior que a reação mais citada na literatura, e a sensibilidade das reações para S. pneumoniae e H. influenzae foi 0,1ng de DNA/reação. Dos 58 pacientes incluídos no estudo, H. influenzae e S. pneumoniae foram detectados respectivamente em 41,38% e 15,52% das amostras. M. pneumoniae não foi detectado em nenhuma amostra analisada por métodos de cultura, PCR e sorologia com anticorpos específicos IgM. Todavia não se exclui a circulação dessa bactéria na região devido à presença de anticorpos IgG específicos. A maioria dos pacientes com PAC avaliados apresentou idade =65 anos e pelo menos uma comorbidade. A maioria dos pacientes apresentou quatro ou mais sinais e sintomas, destes os mais prevalentes foram dispneia, tosse, secreção purulenta e crepitações. Evidenciou-se, neste estudo, a baixa aderência dos clínicos às Diretrizes Brasileiras para diagnóstico, estratificação e tratamento dos pacientes com suspeita de PAC, pois os exames complementares para diagnóstico e avaliação de risco dos casos e o antibiótico escolhido para grande parte dos pacientes não estava de acordo com a determinação das diretrizes. Sugere-se a replicação desta pesquisa, pois os resultados foram de encontro àqueles apresentados na literatura relacionada ao entendimento de PAC, acompanhamento dos ciclos epidêmicos de M. pneumoniae na região e conhecimento da real prevalência dos patógenos típicos, uma vez que o H. influenzae foi o patógeno mais detectado.

Abstract : Pneumonia can be caused by different microorganisms and classified through comprehensive forms, but there are few and fragile clinical and epidemiological studies of community-acquired pneumonia (CAPs). The most common pathogens in CAPs are Streptococcus pneumoniae and Haemophilus influenzae (in typical pneumonia) and Mycoplasma pneumoniae (in atypical pneumonia). Therefore, the aim of this study was to standardize a methodology for molecular detection of these bacteria in the oropharynx samples, and to evaluate their prevalence and the clinical and epidemiological profile of patients with CAP in a hospital in Blumenau/SC. Thus, besides the standard technique PCR in-house, oropharyngeal swab cultures and search for specific antibodies for detection of M. pneumoniae were performed. The PCR reaction performed with primers designed in this study for M. pneumoniae showed sensitivity greater than 10-fold the most cited in the literature reaction and the sensitivity of the reactions to S. pneumoniae and H. influenzae was 0.1 ng DNA / reaction. Out of the 58 patients included in the study, H. influenzae and S. pneumoniae were detected respectively in 41.38% and 15.52% of the samples. M. pneumoniae was not detected in any sample analyzed by culture methods, PCR and serology with IgM specific antibodies. Nevertheless it is not possible to exclude the circulation of this bacterium in the region due to the presence of specific IgG antibodies. Most CAP patients evaluated were 65 years or older and had at least one comorbidity. Most of the patients had four or more signs and symptoms, the most prevalent ones were dyspnea, cough, purulent secretion and crackles. It is evident in this study the low adherence of the practitioners to Brazilian Guidelines for the diagnosis, stratification and treatment of patients with suspected CAP, as the laboratory tests for diagnosis and case risk assessment and also the antibiotic selected for most patients were not determined according to the guidelines. Replication of this research is indicated for a better understanding of the CAP, support of epidemic cycles of M. pneumoniae in the region and knowledge of the real prevalence of the typical pathogens.
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Piroth, Lionel. "Apports d'un modèle de pneumonie expérimentale bactériémique à streptococcus pneumoniae de sensibilité diminuée à la pénicilline dans la prise en charge des pneumonies humaines." Dijon, 2001. http://www.theses.fr/2001DIJOMU02.

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Strpetococcus pneumoniae est l'un des pathogenes les plus frequemment responsables de pneumonies bacteriemiques, avec une morbidite et une mortalite consequentes. L'incidence des souches de s. Pneumoniae de sensibilite diminuee a la penicilline et a d'autres antibiotiques est en constante augmentation. Ces donnees et les problemes therapeutiques inherents soulignent l'importance d'une meilleure connaissance des relations hote-pathogene-antibiotique, que seuls les modeles experimentaux permettent d'approfondir significativement. Nous avons pu developper un modele reproductible et simple de pneumonie chez le lapin immuno-competent, par instillation endo-bronchique d'un inoculum de s. Pneumoniae resistant a la penicilline, sans utilisation d'adjuvants pro-inflammatoires. La pneumonie bacteriemique ainsi obtenue reproduit fidelement les caracteristiques observees chez l'homme, tant sur les plans clinique, radiologique, histologique que microbiologique. Nous avons pu egalement reproduire la cinetique humaine plasmatique des antibiotiques par administration continue controlee par ordinateur. Ce modele, qui permet donc d'obtenir avec des souches d'origine humaine une pneumonie bacteriemique proche de celle observee chez l'homme et de realiser un traitement antibiotique humanise, a ete utilise sur plus de 200 animaux.
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Книги з теми "Streptococcus pneumonias"

1

Iovino, Federico, ed. Streptococcus pneumoniae. New York, NY: Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9199-0.

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Nuorti, J. Pekka. Prevention of pneumococcal disease among infants and children: Use of 13-valent pneumococcal conjugate vaccine and 23-valent pneumococcal polysaccharide vaccine : recommendations of the Advisory Committee on Immunization Practices (ACIP). Atlanta, GA: Dept. of Health and Human Services, Centers for Disease Control and Prevention, 2010.

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Life with the pneumococcus: Notes from the bedside, laboratory, and library. Philadelphia: University of Pennsylvania Press, 1985.

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Brenwald, Nigel Peter. Characterisation of a multidrug efflux system in Streptococcus pneumoniae. Birmingham: University of Birmingham, 2000.

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Johnston, Nicole J. Prevalence and characterization of the mechanisms of macrolide, lincosamide, and streptogramin resistance among isolates of Streptococcus pneumoniae and viridans streptococci. Ottawa: National Library of Canada, 1999.

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Doherty, Neil Christopher. A molecular analysis of hyaluronate lyase production in Streptococcus pneumoniae. [s.l.]: typescript, 2000.

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Boost, Maureen Valerie. Carriage and antibiotic resistance of Streptococcus pneumoniae in Hong Kong. [S.l: The Author], 2004.

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File, Thomas. New insights in the treatment of severe infections in the multiple-drug resistant situation: Proceedings of a satellite symposium to the 11th International Congress on Infectious Diseases, Cancun, Mexico, March 5, 2004. Basel, Switzerland: Karger, 2004.

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I, Tuomanen Elaine, ed. The pneumococcus. Washington, DC: ASM Press, 2004.

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Rankin, Barbara Anne. The development of a dot immunobinding assay for the detection of streptococcus pneumoniae in sputum. [s.l: The Author], 1990.

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Частини книг з теми "Streptococcus pneumonias"

1

Kashani, John, Richard D. Shih, Thomas H. Cogbill, David H. Jang, Lewis S. Nelson, Mitchell M. Levy, Margaret M. Parker, et al. "Streptococcus pneumoniae." In Encyclopedia of Intensive Care Medicine, 2146–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_165.

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Nolte, Oliver. "Streptococcus pneumoniae." In Lexikon der Infektionskrankheiten des Menschen, 779–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-39026-8_1051.

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Roy, Bronwen, and Marcel Leroi. "Streptococcus pneumoniae." In PCR for Clinical Microbiology, 201–3. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-9039-3_26.

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Tuomanen, Elaine. "Streptococcus pneumoniae." In The Prokaryotes, 149–62. New York, NY: Springer US, 2006. http://dx.doi.org/10.1007/0-387-30744-3_4.

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Balakrishnan, Indran. "Streptococcus pneumoniae." In Principles and Practice of Clinical Bacteriology, 41–57. Chichester, UK: John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/9780470017968.ch3.

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6

Sutcliffe, Joyce, and Marilyn C. Roberts. "Streptococcus pneumoniae." In Frontiers in Antimicrobial Resistance, 314–29. Washington, DC, USA: ASM Press, 2014. http://dx.doi.org/10.1128/9781555817572.ch23.

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Neves, Felipe P. G., and Tatiana C. A. Pinto. "Streptococcus pneumoniae." In Molecular Typing in Bacterial Infections, Volume I, 139–52. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-74018-4_6.

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Gasc, Anne-Marie, and Sol H. Goodgal. "Streptococcus pneumoniae R6." In Bacterial Genomes, 755–57. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-6369-3_81.

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Paton, James C., and David E. Briles. "Streptococcus pneumoniae Vaccines." In New Bacterial Vaccines, 294–310. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0053-7_19.

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Kashani, John, Richard D. Shih, Thomas H. Cogbill, David H. Jang, Lewis S. Nelson, Mitchell M. Levy, Margaret M. Parker, et al. "Streptococcus pneumoniae Infections." In Encyclopedia of Intensive Care Medicine, 2151. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_2237.

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Тези доповідей конференцій з теми "Streptococcus pneumonias"

1

Zhang, Y., L. K. Sharma, A. J. Losier, E. Ifedigbo, M. Sauler, I. S. Bazan, C. Dela Cruz, and P. Lee. "Role of PINK1 Mediated Mitophagy During Streptococcus Pneumoniae Pneumonia." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a7230.

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Sanz, F., L. A. Ruiz Iturriaga, M. M. García Clemente, P. P. España Yandiola, L. Serrano Fernández, A. Uranga Echeverria, J. Herrero Huertas, E. Fernández Fabrellas, and PneumoCuore Group. "Streptococcus Pneumoniae Serotype Determine Cardiac Complications During Invasive Pneumococcal Pneumonia." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a4228.

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Costa, Anna Carolina Dockhorn de Menezes Carvalho, Lucas Dalvi Armond Rezende, Maria Gabriella Bianconi, Maxsuelen Rosa Da Silva Santos, and Gabriel Confalonieri Brtoldi Brtoldi. "O QUE HÁ DE EVIDÊNCIAS SOBRE PNEUMONIA ADQUIRIDA NA COMUNIDADE (PAC) EM CRIANÇAS: UMA REVISÃO DA LITERATURA EM MEIO À PANDEMIA DO COVID-19." In I Congresso Nacional de Microbiologia Clínica On-Line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/1203.

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Introdução: A pneumonia adquirida na comunidade (PAC) lidera as causas de mortes entre crianças menores de 5 anos no mundo todo, associada, ainda, a um mal diagnóstico pelos médicos. Isso tudo ainda num cenário de vacinação contra o Streptococcus pneumoniae e para Haemophilus influenzae tipo B (Hib). Ela pode ser causada tanto por vírus, quanto por bactérias, estas sendo secundárias à infecção viral em sua maioria. Material e Métodos: Realizou-se uma revisão integrativa de literatura na base de dados PubMed com os descritores conferidos no Medical Subjetics Headings (MeSH), sendo eles: “Community-Acquired Pneumonia” AND “Child” AND “Therapeutics”. Utilizou-se os filtros: texto completo disponível, intervalo temporal dos últimos 10 anos e artigos que correspondem a questão norteadora: “Quais as evidências científicas sobre o tratamento de PAC em crianças?”. Resultados: Os principais agentes da PAC achados foram o pneumococo e o Hib, contudo, mesmo com o advento das vacinas e esses patógenos controlados, ainda há grande mortalidade de crianças menores de cinco anos no mundo por PAC. O diagnóstico é majoritariamente clínico, podendo utilizar radiografias de tórax, sendo estas o padrão ouro, apresentando infiltrado pulmonar, tanto alveolar quanto intersticial, e a reação em cadeia de polimerase (PCR). O tratamento pode ser em meio hospitalar e ambulatorial. Quanto aos critérios de internação variam entre países desenvolvidos e subdesenvolvidos, sendo o tratamento de primeira linha para pneumonia bacteriana, amoxicilina via oral em pacientes ambulatoriais, e, para pacientes internados, ampicilina ou penicilina G ou amoxicilina, todos via intravenosa e para pacientes menores de 5 anos. O tratamento baseia-se no consenso mundial de que o patógeno Streptococcus pneumoniae é o agente mais comum em pacientes pediátricos Conclusão: Ainda há muita subestimação do quadro de PAC em crianças, com diagnósticos equivocados de síndromes gripais. No atual cenário global de pandemia do COVID-19, torna-se mais difícil de conseguir um diagnóstico eficaz devido às superlotações hospitalares e diminuição de recursos humanos. É imprescindível a setorização e manejo para que esses casos não se deteriorem e para que haja diminuição na mortalidade de crianças e neonatos.
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Losier, A. J., L. K. Sharma, Y. Zhang, W. Liu, P. Lee, and C. Dela Cruz. "Streptococcus Pneumoniae Pneumonia Induces Mitochondrial Biogenesis and Antioxidant Responses in Mice." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a5595.

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Hofstra, JJ, EJ Hoorn, AP Vlaar, D. Wouters, MM Levi, S. Zeerleder, and MJ Schultz. "Complement Inhibition with Human C1-Inhibitor Concentrate in Streptococcus pneumoniae Pneumonia in Rats." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a3232.

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Paternotte, Nienke, Bart Kamies, W. G. Boersma, and W. A. Van Der Reijden. "Adjusted lytA qPCR for improved detection of Streptococcus pneumoniae in community-acquired pneumonia." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa4550.

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Yang, Minlan, Gianluigi Li Bassi, Anna Motos, Hua Yang, Joaquim Bobi, Andrea Meli, Denise Battaglini, et al. "Corticosteroid therapy combined with antibiotics for severe Streptococcus pneumoniae pneumonia in ventilated piglets." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa4553.

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Umer, Erum, Zafar Ahmed, and Syed Ali Arsalan. "Macrolides resitance to streptococcus pneumonia." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa2267.

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Pereira, Enzzo Cavalcante, CÁSSIO DE SOUSA LEAL, CLARISSE FRANCELINO BASTOS, GILDÊNIO ESTEVAM FREIRE, and EDLAINNY ARAUJO RIBEIRO. "PANORAMA DA MORTALIDADE ASSOCIADA A PNEUMONIA EM REDENÇÃO-PA NO PERÍODO DE 2010 A 2019." In II Congresso Nacional de Microbiologia Clínica On-line. Revista Multidisciplinar em Saúde, 2022. http://dx.doi.org/10.51161/ii-conamic/39.

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Анотація:
Introdução: A pneumonia é uma doença inflamatória causada por diversos patógenos, como bactérias, vírus e fungos. Seus principais agentes etiológicos são o Streptococcus pneumoniae e o Haemophilus influenzae, sendo mais propícia diante de fatores relacionados aos hábitos de vida e condições socioeconômicas inadequadas. Objetivos: Determinar o perfil clínico-epidemiológico da mortalidade associada a pneumonia em Redenção, Pará. Metodologia: Foi realizado um estudo descritivo transversal sobre a frequência de óbitos decorrentes de pneumonia no município de Redenção no estado do Pará por meio do Sistema de Informações de Agravos e Notificações do Datasus. As variáveis analisadas foram: idade, sexo e agente etiológico, notificadas no período de 2010 a 2019. Resultados: Para o período analisado, foram notificados um total de 157 óbitos causados por pneumonia, apresentando uma média anual de 16. O ano com maior número de mortes registradas foi 2019 com 19,1% (30/157). Quanto ao gênero, os homens foram mais acometidos com 60,5% (95/157) das mortes. Em relação à faixa etária, os maiores números de mortes estão entre 70-79 anos e idade ≥ 80 anos, respectivamente 24,8% (39/157) e 21,7% (34/157). Em relação aos agentes etiológicos, apenas 15,3% (24/157) dos óbitos registrados apresentaram a identificação e confirmação de seus patógenos, enquanto nos outros 84,7% (133/157) os patógenos não foram especificados. Conclusão: Logo, ressalta-se que na cidade de Redenção na maior parte dos casos não há identificação dos agentes etiológicos associados à pneumonia. Portanto, faz-se necessário a implementação de medidas que busquem a efetividade do diagnóstico, com a realização de exames microbiológicos, a fim de proporcionar um tratamento mais assertivo, principalmente considerando a vulnerabilidade da população idosa bem como, os principais agentes etiológicos e a problemática associada a resistência bacteriana aos antimicrobianos, que pode dificultar o tratamento e piorar a evolução dos pacientes, elevando a mortalidade associada.
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Steck, Patrick, Anja Honecker, Felix Ritzmann, Giovanna Vella, Christian Herr, Markus Bischoff, Timo Speer, Robert Bals, and Christoph Beisswenger. "IL-17RE/IL-17C mediate the recruitment of neutrophils during acute Streptococcus pneumoniae pneumonia." In ERS International Congress 2019 abstracts. European Respiratory Society, 2019. http://dx.doi.org/10.1183/13993003.congress-2019.pa2381.

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Звіти організацій з теми "Streptococcus pneumonias"

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Kindy, Mark S. ENU Mutagenic Screen for Susceptibility and Resistance to Streptococcus Pneumoniae. Fort Belvoir, VA: Defense Technical Information Center, November 2005. http://dx.doi.org/10.21236/ada441504.

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Crum, N. F., C. P. Barrozo, F. A. Chapman, M. A. Ryan, and K. Russell. An Outbreak of Conjunctivitis Due to a Novel Unencapsulated Streptococcus pneumonia Among Military Trainees. Fort Belvoir, VA: Defense Technical Information Center, October 2004. http://dx.doi.org/10.21236/ada433371.

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Alexandrova, Alexandra, Lena Setchanova, Daniela Pencheva, and Ivan Mitov. Molecular Serotyping of Serogroup 6 Streptococcus pneumoniae Isolates Has Shown Emergence of Serotype 6C After the Implementation of 10‑valent Pneumococcal Conjugate Vaccine (PhiD‑CV) in Bulgaria. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, August 2019. http://dx.doi.org/10.7546/crabs.2019.08.14.

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