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Dissertations / Theses on the topic 'Asymptomatic infection'

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Published: 4 June 2021

Last updated: 26 July 2025

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1

Ibáñez, Lladó Laura. "Human Immunodeficiency Virus infection, asymptomatic atherosclerosis, and inflammation: A candidate gene study." Doctoral thesis, Universitat de Barcelona, 2014. http://hdl.handle.net/10803/292490.

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Acquired Immunodeficiency Syndrome (AIDS) was identified more than 30 years ago. The challenges for the clinicians and Human Immunodeficiency Virus (HIV)-infected individuals have changed over the years. Nowadays, viral replication is suppressed with Antiretroviral Therapy (ART). ART prevents AIDS related complications and decreases morbidity and mortality in HIV-infected subjects. However, mortality rates among HIV-infected individuals remain 3-15 times higher than those observed in the general population. The excess of mortality observed among HIV-infected subjects can be partly attributed t

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2

Ng, Kwok-wai Roger. "Predictors of outcome of asymptomatic urinary tract infection in Hong Kong Chinese elderly persons /." View the Table of Contents & Abstract, 2007. http://sunzi.lib.hku.hk/hkuto/record/B38480475.

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Ng, Kwok-wai Roger, and 吳國偉. "Predictors of outcome of asymptomatic urinary tract infection in Hong Kong Chinese elderly persons." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B45011436.

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4

Weilg, Claudia, Lucinda Troyes, Zoila Villegas, et al. "Detection of Zika virus infection among asymptomatic pregnant women in the North of Peru." BioMed Central Ltd, 2018. http://hdl.handle.net/10757/624624.

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Objective: To report an outbreak of ZIKV infection among asymptomatic pregnant women during 2016 in the city of Jaen, Cajamarca. Results: Zika virus RNA was detected in 3.2% (n = 36) of cases by RT-PCR. The mean age of patients positive for ZIKV infection was 29.6 years. 7 patients (19.4%) infected with ZIKV were in their first-trimester of gestation, 13 (36.1%) were in their second-trimester, and 16 (44%) were in their third-trimester. All of the infected pregnant women were asymptomatic. ZIKV infection remains a major public health issue that calls for constant epidemiological surveillance.

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Sifft, Kevin Christian [Verfasser]. "Asymptomatic only at first sight: malaria infection among schoolchildren in highland Rwanda / Kevin Christian Sifft." Berlin : Medizinische Fakultät Charité - Universitätsmedizin Berlin, 2018. http://d-nb.info/1170876293/34.

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6

del, Valle-Mendoza Juana, Lorena Becerra-Goicochea, Miguel Angel Aguilar-Luis, et al. "Genotype-specific prevalence of human papillomavirus infection in asymptomatic Peruvian women: a community-based study." BioMed Central Ltd, 2021. http://hdl.handle.net/10757/657339.

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Objective: To determine the general and genotype-specific prevalence of HPV and to identify potential risk factors for the infection in a population-based screening of Peruvian women. Results: A total of 524 samples were analyzed by PCR and a total of 100 HPV positive samples were found, of which 89 were high-risk, 19 were probably oncogenic, 9 were low-risk and 27 other HPV types. The 26–35 and 36–45 age groups showed the highest proportion of HPV positive samples with a total of 37% (37/100) and 30% (30/100), respectively. Moreover, high-risk HPV was found in 33.7% of both groups and probabl

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7

Aryee, Paul Armah. "Interaction between anaemia and human immuno-deficiency virus infection in an asymptomatic population in South Africa." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/188157/.

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Anaemia is common and frequent in HIV infection and Acquired Immune Deficiency Syndrome (AIDS). This study was aimed at exploring the interactions between the effects of HIV infection and other related anaemia-causing effects (reductive adaptation, reduced energy/nutrient intake and inflammatory and/or metabolic alterations), which may be responsible for most anaemia in this population. It is postulated that these interactions can heighten the risk levels for anaemia even in an asymptomatic HIV-infected population. The study is based on a secondary analysis of data from the Transition and Heal

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8

Espino, Carlos. "Active Surveillance and Incidence Rate of Dengue Infection in a Cohort of High Risk Population in Maracay, Venezuela." Scholar Commons, 2009. https://scholarcommons.usf.edu/etd/1626.

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In the absence of an effective vaccine, vector control and surveillance of dengue fever (DF) and dengue hemorrhagic fever (DHF) are the most important strategies currently used to reduce the impact of these diseases in affected population. The objectives of this study were to estimate the incidence of symptomatic and asymptomatic dengue cases, the prevalence of antidengue antibodies, and to evaluate the laboratory and clinical aspects related to an active surveillance of dengue cases. In this study, active surveillance was incorporated as a part of the study design. At total of 3,255 people fr

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9

Van, Graan Averalda Eldorine. "What is the optimum diet for asymptomatic HIV-infected people (AHIV)? : a public health approach / Averalda Eldorine van Graan." Thesis, North-West University, 2007. http://hdl.handle.net/10394/1484.

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10

Chijioke-Nwauche, I. N. "Use of artemether-lumefantrine in the treatment of asymptomatic-malaria infection in HIV-positive and HIV-negative Nigerian adults." Thesis, London School of Hygiene and Tropical Medicine (University of London), 2014. http://researchonline.lshtm.ac.uk/1856059/.

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Malaria /HIV co-infection is a major challenge to public health in developing countries and yet potential drug-drug interactions between antimalarial and antiviral regimens have not been adequately investigated in people with both HIV and Plasmodium falciparum infections. Earlier studies on the use of artemether-lumefantrine (AL) in Nigeria have neither addressed its use in HIV-positive subjects nor in asymptomatic-malaria infection. The present study investigated associations between drug resistant P. falciparum and the use of medication for HIV management, drug-drug interactions between arte

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11

Grunnill, Martin David. "Inapparent and vertically transmitted infections in two host-virus systems." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/20866.

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Despite the advances made since the advent of germ theory, infectious diseases still wreak havoc on human societies, not only affecting us directly but impacting the crops and livestock upon which we rely. Infectious diseases also have dramatic effects on wildlife ecology. Therefore research into infectious diseases could not only directly lead to the improvement and saving of human lives, but aid in food security and the conservation of many wildlife species. Of vital importance in understanding the ecology of infectious diseases are the mechanisms by which they persist in host populations. O

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12

Garnett, Nomcebo Precious. "Prevalence of asymptomatic sexually transmitted infections: a retrospective review of screening data from Desmond Tutu HIV Centre clinical trial cohorts from 2012 to 2017, Cape Town." Master's thesis, Faculty of Health Sciences, 2019. https://hdl.handle.net/11427/31649.

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Background: The burden of Sexually transmitted infections (STIs) is high globally. The World Health Organisation (WHO) recommends syndromic management of these STIs, based on presentation with signs and symptoms, in resource-limited countries. Due to this syndromic approach, there is little current data on STI prevalence, including asymptomatic STIs, in high risk populations. Methods: We reviewed secondary data collected as part of the screening procedures of 6 clinical trials between 2012 and 2017 in Cape Town, South Africa. These trials recruited populations of different sexual orientation a

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13

Annan, Reginald Adjetey. "The impact of different dietary patterns on nutritional status and metabolic integrity in asymptomatic people living with HIV infection in South Africa." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/67598/.

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Adequate nutritional status promotes optimal structure and function. In PLWH, few studies on the impact of dietary intake on nutritional and metabolic status have been undertaken. This cross-sectional secondary data analysis examined how different dietary patterns influenced nutritional and metabolic integrity in asymptomatic PLWH in the North-West Province of South Africa. Dietary data were collected using validated QFFQ. Data analysis was by SPSS version 14. Dietary and nutrient patterns were generated using Principal Component Analysis. Though asymptomatic, marked biochemical differences de

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14

Moyano, Vidal Luz Maria. "Epidemiologia de la epilepsia en el Peru : Neurocisticercosis como causa de epilepsia secundaria en la region norte del Peru." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0135/document.

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Introduction. La neurocysticercosis (NCC) est l'un des maladies helminthiques les plus courantes du SNC et elle cause de l'épilepsie symptomatique dans les régions pauvres. Il existe peu d'études communautaires sur cette zoonose et leurs comorbidités comme l'épilepsie et la NCC. Méthodologie. Dans la région nord du Pérou, trois études sur la communauté et une révision systématique ont été développés dont les objectifs étaient les suivants: a) évaluer la prévalence de la NCC asymptomatique, b) la prévalence de l'épilepsie associée à la cysticercose, c) la détermination de l'exposition à la cyst

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Chandra, Lukman. "The prevalence of three bacterial STIs at various sites of infection among asymptomatic men-who-have-sex with-men attending the clinic service at Western Sydney Sexual Health Centre." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/19004.

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Introduction: This study aimed to calculate the prevalence of three bacterial sexually transmitted infections (STIs): Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG), and Mycoplasma genitalium (MG), in asymptomatic HIV-negative men-who-have-sex-with-men (MSM) attending Western Sydney Sexual Health Centre (WSSHC). The associations between patient-related factors (demographic, behavioural and clinical factors) and the presence/absence of bacterial STI pathogens were investigated. Methods: This study will calculate the prevalence and risk factors using a retrospective cross-sectional appro

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Lacerda, H?nio Godeiro. "Determinantes envolvidos na resposta imune celular humana ? infec??o por Leishmania infantum chagasi." Universidade Federal do Rio Grande do Norte, 2011. http://repositorio.ufrn.br:8080/jspui/handle/123456789/13247.

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Made available in DSpace on 2014-12-17T14:13:42Z (GMT). No. of bitstreams: 1 HenioGL_TESE.pdf: 1861952 bytes, checksum: 59df83a02a682e8397eb8b241531d77b (MD5) Previous issue date: 2011-11-16<br>Visceral leishmaniasis (VL) is a disease caused by protozoa of the Leishmania donovani complex, whose infection has clinical spectrum ranging from asymptomatic infection to active disease characterized by fever, cachexia, hepatosplenomegaly, and immunosuppression. The healing or protective immunity require an antigen-specific type 1. The Montenegro skin test (DTH) has been interpreted as a marker of p

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Barão, Sandra Cristina. "Prevalencia da infecção por Leishmania chagasi em area de autoctonia recente, Araçatuba/SP." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/311143.

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Orientador: Mariangela Ribeiro Resende<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas<br>Made available in DSpace on 2018-08-09T21:35:03Z (GMT). No. of bitstreams: 1 Barao_SandraCristina_D.pdf: 3775784 bytes, checksum: ffb11ed337f2da69883370a4bf0d4b32 (MD5) Previous issue date: 2007<br>Resumo: As informações que existem acerca da leishmaniose visceral humana, provêm em sua maioria das notificações realizadas nas áreas de alta endemicidade. Por isso, ainda há muitos aspectos a respeito da transmissão urbana e dos quadros de infecção assintomática que pr

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18

Himmel, Phyllis Terry. "Asymptomatic infections of Euphorbia lathyris by Macrophomina phaseolina." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184594.

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In November of 1984 and 1985, Euphorbia lathyris was planted into a field naturally infested with Macrophomina phaseolina located at the Campbell Avenue Farm in Tucson, Arizona. Plants without foliar symptoms and rhizosphere soil were sampled regularly from emergence until the following May or June. Soil rhizosphere populations ranged from 0.7-3.0 cfu/g soil in 1985 to 8.0-24.1 cfu/g soil in 1986, and did not change significantly over either growing season (P > 0.05). Both the incidence of disease and the number of infection sites per cm of root increased significantly (P < 0.05) over each gro

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19

Rodhe, Nils. "Asymptomatic Bacteriuria in the Elderly." Doctoral thesis, Uppsala universitet, Allmänmedicin och klinisk epidemiologi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-9288.

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The aim of this thesis was to explore the features of asymptomatic bacteriuria (ASB) in elderly people living in the community, and to seek diagnostic tools to discriminate between ASB and symptomatic urinary tract infection (UTI). All men and women aged 80 and over living in an urban district of Falun, Sweden, were invited to participate. Urine samples were obtained together with information on symptoms and on health indicators. The same cohort was surveyed again after 6 and 18 months. Urinary cytokines were analysed in 16 patients with UTI, in 24 subjects with ASB and in 20 negative controls

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20

Hinke, Tiene Zingano. "Perfil nosológico da população ribeirinha do baixo rio Machado em Rondônia / Amazônia Ocidental - Brasil." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/42/42135/tde-03032010-101656/.

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Foi estudado o perfil nosológico da população ribeirinha do Baixo Rio Machado em Rondônia, área de Amazônia Ocidental no Brasil. Neste estudo, escolhemos abordar o perfil das seguintes doenças: malária, hepatite viral B e C, parasitose intestinal e papilomavírus humano. Estas doenças foram priorizadas devido à importância clínica e epidemiológica e também escassez de estudos referentes nas populações ribeirinhas amazônicas. Para isto, foi realizado um estudo descritivo no Baixo Rio Machado que se localiza a 250 km de Porto Velho (capital do Estado de Rondônia) pela margem direita do Rio Madeir

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21

Garcia, Cheslymar. "Assessment of Bacteriuria and Surgical Site Infections in Dogs with Cranial Cruciate Ligament Disease." Thesis, Virginia Tech, 2019. http://hdl.handle.net/10919/90406.

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Objective: The aims of this prospective clinical cohort study were to determine the prevalence of asymptomatic bacteriuria in dogs with cranial cruciate ligament disease and to determine which clinical parameters and clinicopathologic data are associated with asymptomatic bacteriuria. Another aim was to determine the incidence of surgical site infections in dogs with and without asymptomatic bacteriuria. Results: In 156 dogs with cruciate ligament disease, the prevalence of asymptomatic bacteriuria was 7.1%. Furthermore, the prevalence was 12.4% in female dogs and 0% in male dogs. The most co

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Guimond-Peron, Gabriel. "The ecology and evolution of antimicrobial resistance in asymptomatic Salmonella enterica /." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=99182.

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Infections caused by resistant pathogens fail to respond to treatment, resulting in increased costs due to prolonged illness and hospitalization. Determining the extent of resistance in animal populations is thus of great importance to public health. In this work, we first showed that asymptomatic populations of Salmonella in pigs present greater genotypic and phenotypic diversity than disease-associated populations. Second, we identified a clonal population structure associated with asymptomatic Salmonella found in the Canadian swine industry and we confirmed that food-producing pigs are a si

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23

Surrao, Leanna. "The optimization of loop-mediated isothermal amplification (LAMP) as a diagnostic tool for low-density, asymptomatic malaria infections." Thesis, Federation University Australia, 2020. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/172068.

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Current diagnostic tools for malaria lack the sensitivity to identify individuals with low-density infections. Asymptomatic low-density infections are common in malaria endemic regions and these individuals provide an important reservoir of infection that enables transmission to mosquitoes. Failure to detect these individuals threatens the global health goal of malaria elimination. Loop-mediated isothermal amplification (LAMP) is a technique to amplify DNA and has the potential to diagnose these individuals. The LAMP assay was assessed in a field study in rural Vietnam. 5421 samples were colle

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Barletta, Francesca, Theresa J. Ochoa, Erik H. Mercado, et al. "Quantitative real-time polymerase chain reaction for enteropathogenic Escherichia coli: a tool for investigation of asymptomatic versus symptomatic infections." Oxford University Press, 2015. http://hdl.handle.net/10757/556075.

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theresa.j.ochoa@uth.tmc.edu<br>Article<br>BACKGROUND: Enteropathogenic Escherichia coli (EPEC) strains are pediatric pathogens commonly isolated from both healthy and sick children with diarrhea in areas of endemicity. The aim of this study was to compare the bacterial load of EPEC isolated from stool samples from children with and without diarrhea to determine whether bacterial load might be a useful tool for further study of this phenomenon. METHODS: EPEC was detected by polymerase chain reaction (PCR) of colonies isolated on MacConkey plates from 53 diarrheal and 90 healthy children aged

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Gleadhill, Claire, and Demetrio Jr Macariola. "Time to Think Deeper when HSV is Presenting in an Unusual Way." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/asrf/2019/schedule/153.

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This study demonstrates the first case report in which an NK Cell deficiency initially presented as an asymptomatic disseminated herpes simplex viremia (HSV). A pre-term 13- day- old patient presented with disseminated HSV after investigation because his twin brother was found to have HSV vesicular lesions. The patient remained asymptomatic throughout the entire hospital course. While 40% of neonates never exhibit vesicular lesions, most of the infants will be symptomatic with DIC and/or respiratory and/or hepatic failure. The HSV development in his twin brother prompted immediate multiple HSV

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Michel, Grégory. "Leishmaniose à Leishmania infantum : portage asymptomatique, vaccination par voie endonasale et apport de la bioluminescence." Thesis, Aix-Marseille 2, 2011. http://www.theses.fr/2011AIX20723.

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La leishmaniose viscérale (LV) à Leishmania infantum est une zoonose qui sévit notamment autour du bassin méditerranéen. Elle atteint principalement le chien, qui représente le réservoir de l’infection. Chez l’homme, si la forme patente est rare, il existe de nombreux sujets porteurs asymptomatiques dans les zones d’endémies. Au cours de ce travail, nous avons abordé 3 problématiques importantes concernant la LV. La première problématique à porté sur l’importance du portage asymptotique humain à L. infantum au niveau mondial et de ses conséquences. Notre étude montre que la fréquence de porteu

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27

Hristov, Angelica Domingues. "Ocorrência de Plasmodium e suas consequências em gestantes residentes em áreas de baixa transmissão de malária no Estado de São Paulo." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/5/5134/tde-20102014-122710/.

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Estudos relacionados à malária autóctone em regiões de baixa transmissão no Brasil ganham cada vez mais relevância científica e epidemiológica, pois revelam a manutenção desse cenário em regiões de Mata Atlântica remanescente. No sudeste do Estado de São Paulo, a ocorrência de surtos no município de Juquitiba tem sido foco de pesquisas sobre a prevalência de Plasmodium na população, com registros de casos assintomáticos. Relatos de ocorrência da doença ou da presença de anticorpos antiplasmodiais em gestantes nessa região não haviam sido descritos anteriormente. Embora infecções por P. falcipa

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28

Cupido, Ynoma. "Waiting to die: staging of HIV positive people at the first HIV test - Region A, Nelson Mandela Metropole (January 1991-April 2000)." Thesis, University of the Western Cape, 2006. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8832_1253846190.

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<p>This project suggested tha HIV people in Region A (Nelson Mandela Metropole, formerly Port Elizabeth) health districty of the Eastern Cape, seek HIV testing when they are already in stages three (late disease) and four (AIDS) of HIV infection. Data had been obtained from the AIDS Training Information and Counselling Centre in the Nelson Mandela Metropole in 2000. The consequences of diagnoses onlu in the advanced stages of HIV infection will have a devastating impact on case management. Therefore, this paper yielded important data for South African policy makers to write health and welfare

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Mezache, Mathieu. "Oscillatory processes during the aggregation and the fragmentation of amyloid fibrils." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS533.

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Cette thèse se focalise sur l'étude du processus d'agrégation et de fragmentation des protéines. Plus particulièrement, des phénomènes cinétiques oscillatoires sont identifiés lors d’expériences sur les maladies à prions, une sous-catégorie des maladies amyloïdes. Dans un premier temps, nous remarquons que des oscillations atténuées et localisées à des endroits spécifiques sur les signaux expérimentaux sont observables. Ces oscillations mettent en avant la présence de phénomènes cinétiques complexes, sous-jacents, lors des processus cinétiques de protéines. Nous définissons une caractérisation

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Wang, Te-En, and 王德恩. "Estimating Asymptomatic Ratio of Pathogen Infection by Log-Linear Binomial Regression Model." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/28138057750784914284.

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碩士<br>國立臺灣大學<br>流行病學研究所<br>97<br>Asymptomatic ratio, which is the relation of cases with no symptoms in proportion to cases infected with pathogens, is an important indicator in public health. However, symptoms of infected cases are not altogether caused by the pathogens. What is more, it is difficult to find out the real factor that leads to the symptoms of the case that is infected with multi-pathogen infection at the same time. As a result, we may have trouble estimating asymptomatic ratio of each pathogen in such a case. In this study, we use log-linear binomial regression model, in

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Furuya, Kanamori Luis. "The epidemiology of Clostridium difficile infection in Australia." Phd thesis, 2016. http://hdl.handle.net/1885/112139.

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Background: Clostridium difficile was traditionally considered a nosocomial pathogen and research on C. difficile infection (CDI) has largely focused on symptomatic hospital-associated (HA)-CDI. Recent studies have pointed out the importance of asymptomatic C. difficile colonisation and community-associated (CA)-CDI in C. difficile epidemiology, yet our current understanding of these components is limited. Therefore, the objectives of my research were: 1) to identify risk factors associated with asymptomatic C. difficile colonisation; 2) to compare the p

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Fechner, Kim. "Distribution of Mycobacterium avium subspecies paratuberculosis in clinically asymptomatic bulls and different non-ruminant species." Doctoral thesis, 2017. http://hdl.handle.net/11858/00-1735-0000-0023-3EF4-9.

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Lobão, Maria João da Costa Nunes. "Infecções urinárias adquiridas no hospital : resultados de um estudo de coorte realizado num serviço de medicina interna." Master's thesis, 2015. http://hdl.handle.net/10362/17127.

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RESUMO - Introdução: As infecções associadas aos cuidados de saúde são um importante problema de saúde pública. Entre elas, as infecções urinárias são as mais frequentes associando‐se a elevados custos e morbilidade. Pretende‐se caracterizar as ITU adquiridas no Hospital (ITUaH) ocorridas num serviço de Medicina Interna de um hospital português. Métodos: Efectuou‐se um estudo de coorte (histórica) para determinação da incidência da ITUaH e da bacteriúria assintomática. Analisaram-se os dados correspondentes a uma amostra aleatória sistemática de 388 doentes, representativa dos 3492 admissõe

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McLure, Angus. "Mathematical models of Clostridium diffcile transmission." Phd thesis, 2018. http://hdl.handle.net/1885/162752.

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Clostridium difficile infections (CDIs) are some of the most common hospital-acquired infections and the most common cause of antibiotic-associated diarrhoea. CDIs lead to great loss of life, severe health outcomes, and incur very high financial costs through treatment, extended hospital stays, and readmissions. Despite extensive research and many resources committed to the prevention and treatment CDIs in hospitalised patients, hospitals continue to be hotspots for this disease. Meanwhile, there is an emerging awareness of the burden this disease places

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Jordaan, Elsabe. "The effect of depression and learned helplessness in early and asymptomatic HIV infected subjects." Thesis, 2014. http://hdl.handle.net/10210/9532.

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M.A. (Psychology)<br>The present study was undertaken in an attempt to understand and ascertain the nature and influence of psychological variables on the longevity of people who are infected withHN. The specific postulate of this study was that depression is the most important psychological variable that influences the longevity of people with my, either directly or indirectly. A number of variables were hypothesized to playa concomitant role with depression as factors that mediate longevity in people with my. These factors include learned helplessness, self-efficacy, sickness impact, sexual

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