Bibliografie tematiche / Vibrio

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Letteratura scientifica selezionata sul tema "Vibrio"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 22 giugno 2024

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Articoli di riviste sul tema "Vibrio"

1

Thompson, C. C., F. L. Thompson, K. Vandemeulebroecke, B. Hoste, P. Dawyndt e J. Swings. "Use of recA as an alternative phylogenetic marker in the family Vibrionaceae". International Journal of Systematic and Evolutionary Microbiology 54, n. 3 (1 maggio 2004): 919–24. http://dx.doi.org/10.1099/ijs.0.02963-0.

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Abstract (sommario):
This study analysed the usefulness of recA gene sequences as an alternative phylogenetic and/or identification marker for vibrios. The recA sequences suggest that the genus Vibrio is polyphyletic. The high heterogeneity observed within vibrios was congruent with former polyphasic taxonomic studies on this group. Photobacterium species clustered together and apparently nested within vibrios, while Grimontia hollisae was apart from other vibrios. Within the vibrios, Vibrio cholerae and Vibrio mimicus clustered apart from the other genus members. Vibrio harveyi- and Vibrio splendidus-related species formed compact separated groups. On the other hand, species related to Vibrio tubiashii appeared scattered in the phylogenetic tree. The pairs Vibrio coralliilyticus and Vibrio neptunius, Vibrio nereis and Vibrio xuii and V. tubiashii and Vibrio brasiliensis clustered completely apart from each other. There was a correlation of 0·58 between recA and 16S rDNA pairwise similarities. Strains of the same species have at least 94 % recA sequence similarity. recA gene sequences are much more discriminatory than 16S rDNA. For 16S rDNA similarity values above 98 % there was a wide range of recA similarities, from 83 to 99 %.
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2

WONG, HIN-CHUNG, LI-LI CHEN e CHUNG-MING YU. "Occurrence of Vibrios in Frozen Seafoods and Survival of Psychrotrophic Vibrio cholerae in Broth and Shrimp Homogenate at Low Temperatures". Journal of Food Protection 58, n. 3 (1 marzo 1995): 263–67. http://dx.doi.org/10.4315/0362-028x-58.3.263.

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Abstract (sommario):
Pathogenic vibrios are important etiologic agents in tropical regions and have been frequently recovered from seafoods and aquacultured foods. In this study, commercially frozen seafoods including peeled shrimps and fish and shrimp dumplings were examined. Vibrio alginolyticus, Vibrio parahaemolyticus, Vibrio cholerae and Vibria fluvialis were recovered at 36.0%, 15.8%, 14.9% and 13.2%, respectively. A number of psychrotrophic vibrios were selected and their survival in tryptic soy broth (TSB) supplemented with 1% sodium chloride (NaCl) (TSBS medium) and shrimp homogenate at 4°C and −30°C were studied. Two psychrotrophic non-O1 V. cholerae (laboratory stocks no 128 and 129) survived well at these low temperatures. Counts decreased by about 1 log/ml in TSBS medium at 4°C for 6 days and 3 log/ml at −30°C for 3 days. Shrimp homogenate provided better protection than TSBS medium for psychrotrophic V. cholerae at −30°C. Survival of V. cholerae at low temperatures was further increased by the addition of 0.5% of heated pyrophosphate and metaphosphate, probably by decreasing the lethality of the cold injury to the cells. Measures should be taken to minimize the risk from pathogenic vibrios in frozen seafoods, especially if phosphates are used and psychrotrophic strains are present.
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3

Thongchankaew, Uraiwan, Pimonsri Mittraparp-arthorn, Pharanai Sukhumungoon, Natta Tansila, Taiyeebah Nuidate, Mitsuaki Nishibuchi e Varaporn Vuddhakul. "Occurrence of potentially pathogenic vibrios and related environmental factors in Songkhla Lake, Thailand". Canadian Journal of Microbiology 57, n. 11 (novembre 2011): 867–73. http://dx.doi.org/10.1139/w11-084.

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Vibrios are halophilic bacteria that are ubiquitous in marine environments. Their occurrence in tropical lakes has rarely been investigated. In this study, the predominance and diversity of Vibrio spp. was investigated over a 12-month period in a coastal lagoon, Songkhla Lake, in southern Thailand. Water samples were collected at 2 stations in the estuary near Yor Island in Songkhla Lake. The predominant vibrios were detected by a culture-based method, using thiosulfate–citrate–bile salt–sucrose agar and CHROMagar Vibrio. The diversity of Vibrio spp. was evaluated using denaturant density gradient electrophoresis (DGGE). The highest numbers of total vibrios and Vibrio parahaemolyticus in both areas were observed during the summer. There was no significant correlation between the numbers of vibrios, including V. parahaemolyticus, and either the water temperature or plankton density. Variations in Vibrio species were observed with changes in salinity. Vibrio parahaemolyticus and V. cholerae non-O1/non-O139 were detected during the rainy season when the salinity dropped to nearly 0 parts per thousand. In both areas, V. alginolyticus was the most prominent species detected by the culture method, whereas Vibrio parahaemolyticus was detected by DGGE, every month. Other Vibrio spp. of potential public health concern were also detected by the culture method; they included V. vulnificus , V. fluvialis , and V. mimicus .
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Urakawa, Hidetoshi, Kumiko Kita-Tsukamoto e Kouichi Ohwada. "Restriction fragment length polymorphism analysis of psychrophilic and psychrotrophic Vibrio and Photobacterium from the north-western Pacific Ocean and Otsuchi Bay, Japan". Canadian Journal of Microbiology 45, n. 1 (1 gennaio 1999): 67–76. http://dx.doi.org/10.1139/w98-128.

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Abstract (sommario):
Typing and identification of 60 marine psychrophilic and psychrotrophic vibrios isolated from the north-western Pacific Ocean and coastal environment of Japan were performed by restriction fragment length polymorphism analysis on the basis of polymerase chain reaction amplified 16S rDNA. We obtained 15 operational taxonomic units (OTUs) by digestion with four restriction endonucleases (HhaI, DdeI, RsaI, and Sau3AI); four large groups were obtained from the neighbor-joining method. Significant differences were observed in OTU composition between isolates from the deep sea and coastal areas. Vibrio marinus and Photobacterium species were the dominant culturable vibrios in the deep sea areas, while Vibrio splendidus like species were the dominant culturable vibrios in a coastal area of Japan.Key words: restriction analysis, Vibrio, Photobacterium, Vibrio marinus (Moritella marina), Vibrio splendidus.
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5

Xu, Kangping, Yushu Wang, Wangxiaohan Yang, Hongyan Cai, Youyu Zhang e Lixing Huang. "Strategies for Prevention and Control of Vibriosis in Asian Fish Culture". Vaccines 11, n. 1 (31 dicembre 2022): 98. http://dx.doi.org/10.3390/vaccines11010098.

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Abstract (sommario):
It is estimated that vibriosis account for about half of the economic losses in Asian fish culture. Consequently, the prevention and control of vibriosis is one of the priority research topics in the field of Asian fish culture disease. Relevant measures have been proposed to control some Vibrios that pose a threat to Asian fish culture, but there are currently only a few effective vaccines available to combat these Vibrios. The purpose of our review is to sum up the main prevention methods and the latest control strategies of seven Vibrio species that cause great harm to Asian aquaculture, including Vibrio harveyi, Vibrio vulnificus, Vibrio parahaemolyticus, Vibrio mimicus, Vibrio anguillarum, Vibrio alginolyticus and Vibrio cholerae. Strategies such as antibiotics, probiotics, bacteriophages, antimicrobials from plants and other natural sources, as well as vaccines, are compared and discussed here. We expect this review will provide some new views and recommendations for the future better prevention and control of vibriosis in Asian fish culture.
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6

WONG, HIN-CHUNG, LI-LI CHEN e CHUNG-MING YU. "Survival of Psychrotrophic Vibrio mimicus, Vibrio fluvialis and Vibrio parahaemolyticus in Culture Broth at Low Temperatures". Journal of Food Protection 57, n. 7 (1 luglio 1994): 607–10. http://dx.doi.org/10.4315/0362-028x-57.7.607.

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Abstract (sommario):
Pathogenic vibrios are important etiologic agents in tropical regions and have been frequently recovered from seafoods and aquacultured foods. A number of psychrotrophic vibrios were isolated and selected from frozen seafoods and their survivals in tryptic soy broth (TSB) at 4°C and −30°C were studied. These psychrotrophic strains showed good survival at low temperatures and could probably enhance the risk of vibrios in frozen foods. Vibrio mimicus 70 and 198, Vibrio fluvialis 52 and Vibrio parahaemolyticus 205 survived well at 10°C, 4°C and −30°C, while the non-cold fitter V. fluvialis 28 was completely inactivated in the test periods. These strains were not heat resistant and could be easily inactivated by heat treatment. Effect of phosphates may be different for. various Vibrio species at low temperatures. Survival of V. parahaemolyticus 205 was significantly protected by the heated metaphosphate at 4°C by lowering the lethality of cold injured cells but not by increasing the level of uninjured viable cells. Pyrophosphate was inhibitory to this V. parahaemolyticus strain at −30°C.
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7

WONG, HIN-CHUNG, WAN-RU SHIEH e YEONG-SHENG LEE. "Toxigenic Characterization of Vibrios Isolated from Foods Available in Taiwan". Journal of Food Protection 56, n. 11 (1 novembre 1993): 980–82. http://dx.doi.org/10.4315/0362-028x-56.11.980.

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Abstract (sommario):
Several Vibrio species have been implicated in diarrheal diseases and wound infection, and some foods are important vehicles for these pathogens. A number of these vibrios isolated from food produced extracellular heat-labile or heat-stable hemolysin and cytotoxins, but only a few strains hybridized to nucleic acid probes of Shiga-like toxin, cholera toxin, or thermostable direct hemolysin. These vibrios also produced extracellular or cell-mediated mouse-lethal factors. The vibrios from foods may produce toxins not identical or related to the common toxins of Escherichia coli, Vibrio cholerae, or Vibrio parahaetnolyticus.
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8

Thompson, Cristiane C., Fabiano L. Thompson, Ana Carolina P. Vicente e Jean Swings. "Phylogenetic analysis of vibrios and related species by means of atpA gene sequences". International Journal of Systematic and Evolutionary Microbiology 57, n. 11 (1 novembre 2007): 2480–84. http://dx.doi.org/10.1099/ijs.0.65223-0.

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Abstract (sommario):
We investigated the use of atpA gene sequences as alternative phylogenetic and identification markers for vibrios. A fragment of 1322 bp (corresponding to approximately 88 % of the coding region) was analysed in 151 strains of vibrios. The relationships observed were in agreement with the phylogeny inferred from 16S rRNA gene sequence analysis. For instance, the Vibrio cholerae, Vibrio halioticoli, Vibrio harveyi and Vibrio splendidus species groups appeared in the atpA gene phylogenetic analyses, suggesting that these groups may be considered as separate genera within the current Vibrio genus. Overall, atpA gene sequences appeared to be more discriminatory for species differentiation than 16S rRNA gene sequences. 16S rRNA gene sequence similarities above 97 % corresponded to atpA gene sequences similarities above 80 %. The intraspecies variation in the atpA gene sequence was about 99 % sequence similarity. The results showed clearly that atpA gene sequences are a suitable alternative for the identification and phylogenetic study of vibrios.
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9

Ibarra Trujillo, Jimmy, Alvaro Delgado e Débora Alvarado. "Vibrios no Epidémicos y Vibrio cholerae O1 Asociados a Enfermedad Diarreica Aguda. Evento Climatológico. "El Niño" - 1998. Hospital Nacional Dos de Mayo". Anales de la Facultad de Medicina 60, n. 4 (7 aprile 2014): 251. http://dx.doi.org/10.15381/anales.v60i4.4382.

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OBJETIVOS: Aislar e identificar Vibrio cholerae O1 y especies de vibrios no epidémicos asociados a casos de enfermedad diarreica aguda (EDA) durante 1998, dentro del evento climatológico "El Niño" Oscilación del Sur (ENOS). MATERIALES Y MÉTODOS: Durante los meses de verano de 1998 se realizó 70 coprocultivos de pacientes con EDA admitidos en la sala de emergencia del Hospital Nacional Dos de Mayo de Lima. Se estudió colonias aisladas en Agar TCBS. Los aislados fueron sometidos a pruebas bioquímicas y serológicas para la identificación de Vibrio cholerae O1. La identificación de vibrios no epidémicos y otros vibrios patogénicos se realizó tomando en consideración las características descritas en el Manual de Sistemática Bacteriana de Bergey (1994). RESULTADOS: Los resultados indican que el mayor numero de casos estudiados estuvieron asociados a Vibrio cholerae O1 como agente etiológico único (64,3%) o relacionados a otras especies de Vibrio (4,2%). Se relata 2 casos (2,9%) que involucraron a V. vulnificus y 3 (4,3%) a V. parahaemolyticus como agentes etiológicos de diarrea aguda. CONCLUSIONES: La asociación de Vibrio cholerae O1 con otras especies de vibrios no epidémicos permitiría establecer una relación directa entre las infecciones diarreicas estudiadas y el ENOS.
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10

LAMON, SONIA, SIMONETTA G. CONSOLATI, FEDERICA FOIS, MARIA G. CAMBULA, MARGHERITA PES, GABRIELLA PORCHEDDU, VANESSA AGUS, GIUSEPPE ESPOSITO, ANNA MUREDDU e DOMENICO MELONI. "Occurrence, Seasonal Distribution, and Molecular Characterization of Vibrio vulnificus, Vibrio cholerae, and Vibrio parahaemolyticus in Shellfish (Mytilus galloprovincialis and Ruditapes decussatus) Collected in Sardinia (Italy)". Journal of Food Protection 82, n. 11 (11 ottobre 2019): 1851–56. http://dx.doi.org/10.4315/0362-028x.jfp-19-021.

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ABSTRACT In this study, we investigated the occurrence, seasonal distribution, and molecular characterization of pathogenic vibrios in Mediterranean mussels (Mytilus galloprovincialis) and grooved carpet shells (Ruditapes decussatus) from two harvesting areas of Sardinia (Italy). Samples collected before and after depuration were submitted for qualitative and quantitative determination of Vibrio spp. Vibrio spp. isolates were presumptively identified by means of biochemical methods. Identification and virulence profile of Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus were performed by molecular methods. The prevalence of Vibrio spp. in M. galloprovincialis and R. decussatus was, respectively, 96 and 77%. The averaged enumeration (mean ± standard deviation) of Vibrio spp. in samples of M. galloprovincialis and R. decussatus collected at the harvesting time was 2.04 ± 0.45 and 2.51 ± 0.65 log CFU/g, respectively. The average contamination levels in samples collected after purification were 2.28 ± 0.58 log CFU/g (M. galloprovincialis) and 2.12 ± 0.67 log CFU/g (R. decussatus). Four potentially pathogenic V. parahaemolyticus isolates (tdh+ or trh+) were recovered from grooved carpet shells samples. No isolate was tdh+/trh+. The presence of potentially pathogenic vibrios in Sardinian waters strengthens the need for rational purification practices under controlled conditions to guarantee the protection of consumers.
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Più fonti

Tesi sul tema "Vibrio"

1

Chow, Ka-hang. "Molecular characterization of RTX toxin of vibrio cholerae causing epidemics". Click to view the E-thesis via HKUTO, 2001. http://sunzi.lib.hku.hk/hkuto/record/B42575898.

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2

Kural, Ayse G. "Temperature-assisted pressure inactivation of Vibrio parahaemolyticus and Vibrio vulnificus in oysters". Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 89 p, 2007. http://proquest.umi.com/pqdweb?did=1338870531&sid=16&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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3

Rubio, Galleguillos Felipe Andrés. "Implementación de técnica para la detección de vibrios y análisis de Vibrio vulnificus en muestras de alimentos". Tesis, Universidad de Chile, 2006. http://repositorio.uchile.cl/handle/2250/105607.

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Unidad de práctica para optar al título de Químico Farmacéutico
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La practica prolongada fue realizada en Departamento de Microbiología de Alimentos del Instituto se Salud Pública de Chile, durante los meses de Junio a Diciembre del año 2005. Mi labor en la práctica constó de tres etapas simultáneas: La primera consistió en recibir capacitación durante todo el período de mi práctica, en detección y cuantificación de los patógenos bacterianos más frecuentes encontrados en alimentos. La segunda etapa fue implementar el último método de detección de Vibrios (principalmente Vibrio vulnificus en mi caso) según el Manual Analítico Bacteriológico (BAM) año 2004 impuesto por la Food and Drugs Administration (FDA) (1), para la cual se utilizaron cepas de diversos Vibrios tales como Vibrio vulnificus, Vibrio parahaemolyticus, Vibrio cholerae, etc. Dicha labor será necesaria para actualizar los métodos de detección en los laboratorios de la red de vigilancia epidemiológica de Chile. En la otra etapa, se evaluó según el método que se estaba desarrollando la población de Vibrio vulnificus existente en Puerto Montt, ésta etapa se comenzó a trabajar a partir aproximadamente en julio ya que primero debía estar desarrollada en alguna medida la técnica de detección, además de que estuvieran los materiales necesarios para el trabajo. Las muestras analizadas son ensayos de rutina que llegan al SEREMI de Salud de la región Metropolitana para evaluar durante todo el año la población de Vibrio parahaemolyticus y Vibrio cholerae en Puerto Montt, las cuales se reciben todos los martes y consta de 5 muestras de los cuales se analizan 12 especimenes de cada una, para luego cuantificarlas por el método de tubos múltiples según la tabla de número más probable (anexo, Tabla 1). Es importante que el ISP, como centro de referencia posea información sobre todo patógeno que pueda ser encontrado en alimentos, es por eso que esta etapa culminará con la entrega del procedimiento de detección de Vibrio vulnificus al Departamento de Microbiología de Alimentos
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4

Leung, Y. Tai Ida. "Infections à vibrio vulnificus, revue de la littérature à propos d'une observation de septicémie". Bordeaux 2, 1996. http://www.theses.fr/1996BOR2M053.

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5

Hardman, Andrea M. "Quorum sensing in vibrio anguillarum". Thesis, University of Nottingham, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363936.

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6

Chalker, Victoria J. "Quorum sensing in Vibrio anguillarum". Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325714.

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7

Limthammahisorn, Suttinee Brady Yolanda Juanita Arias Covadonga R. "In vitro and in vivo cold shock response in Vibrio vulnificus". Auburn, Ala., 2007. http://repo.lib.auburn.edu/Send%2002-04-08/LIMTHAMMAHISORN_SUTTINEE_24.pdf.

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8

Alvarez, Julia D. "Studies on Venezuelan fish and shrimp associated bacteria". Thesis, Heriot-Watt University, 1998. http://hdl.handle.net/10399/619.

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9

Lima, Anahy de Souza. "VÃbrio em camarÃo e na Ãgua de trÃs fazendas de carcinicultura do CearÃ". Universidade Federal do CearÃ, 2007. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=2876.

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O presente estudo teve por objetivo quantificar Vibrio, vibrios sac+ e sac â e identificar as espÃcies de Vibrio, presentes no cultivo do camarÃo Litopenaeus vannamei e na Ãgua onde à ele cultivado. Acompanharamse dois ciclos do cultivo do L. vannamei em trÃs fazendas (A, B e C),situadas nos estuÃrios dos rios AcaraÃ, Coreaà e Jaguaribe (CE), de agosto de 2005 a outubro de 2006, nas estaÃÃes de chuva e estiagem. Foram analisadas 60 amostras de camarÃo e 240 amostras de Ãgua de viveiro. Foram feitos os testes de Contagem PadrÃo em Placas (CPP) total de Vibrio; CPP das colÃnias de Vibrio sacarose positivas e negativas, e identificaÃÃo das espÃcies nas amostras de camarÃo e na Ãgua. O valor mÃnimo da CPP de Vibrio nas amostras de Ãgua foi de 2,0 x 102 UFC/mL nas fazendas A, e C no perÃodo de chuva e o mÃximo foi 1,42 x 108 UFC/mL na fazenda B, no perÃodo de estio. O valor mÃximo para CPP de Vibrio nas amostras de camarÃo (pÃs-larva e hepatopÃncreas) foi de 4,5 x 108 UFC/g, na fazenda B no perÃodo de estio. O valor mÃnimo de Vibrio sacarose positiva no hepatopÃncreas foi 1,00 x 102 UFC/g nas fazendas A e B no perÃodo de chuva e mÃximo foi 4,5 x 108 UFC/g na fazenda B, no perÃodo de estio. O valor mÃnimo de Vibrio sacarose negativa foi 0,98 x 10 UFC/g de hepatopÃncreas na fazenda A, no perÃodo de chuva e mÃximo foi de 9,50 x 105 na fazenda C no perÃodo da chuva. A CPP de vibrios das amostras de Ãgua e do camarÃo foi sempre menor no perÃodo da chuva. Das amostras de Ãgua e camarÃo das trÃs fazendas foram isoladas 145 cepas de Vibrio. Dessas, 62 foram isoladas da Ãgua de cultivo do camarÃo e 56 foram isoladas do camarÃo (pÃs-larva e hepatopÃncreas). A fazenda B apresentou maior nÃmero de diferentes espÃcies isoladas e identificadas (11). Durante a esquisa, os isolados de camarÃo e Ãgua do viveiro, Apresentaram uma predominÃncia de Vibrio mimicus, seguidos de V.alginolyticus e V. tubiashii. De todas as fazendas, A, B e C, a fazenda Afoi a que apresentou um viveiro com a menor taxa de sobrevivÃncia de camarÃes na despesca: 37,24%, no perÃodo da chuva.Nem a quantidade de vÃbrios total, nem a de sacarose positiva, ou negativa no hepatopÃncreas dos camarÃes, influencia o Ãndice de SobrevivÃncia dos animais nos viveiros das fazendas, no momento da despesca. A maior ou menor diversidade de vÃbrios nos camarÃes nÃo implicou numa maior ou menor taxa de sobrevivÃncia dos animais nos viveiros das fazendas, no momento da despesca. No entanto, quando o nÃmero de Vibrio foi alto na Ãgua e a diversidade baixa, caso da Fazenda A no perÃodo da chuva, a taxa de sobrevivÃncia foi afetada negativamente. O nÃmero de vÃbrios à proporcional ao teor de salinidade das Ãguas. Somente os dados da enumeraÃÃo de vÃbrios e/ou os dados da enumeraÃÃo de vÃbrio sacarose positiva ou negativa nÃo sÃo suficientes para se avaliar a probabilidade de camarÃes, de um determinado viveiro, virem a adoecer.
This study aimed to quantify Vibrio, Vibrio and sac + sac - and identify the species of Vibrio, in the cultivation of shrimp Litopenaeus vannamei and water where it is grown. Acompanharamse two cycles of cultivation of L. vannamei in three farms (A, B and C), located in river estuaries AcaraÃ, and Coreaà Jaguaribe (EC), August 2005 to October 2006, at the stations of rain and drought. We analyzed 60 samples of shrimp and 240 samples of water from nursery. The tests were made in Standard Plate Count (CPP) of total Vibrio; CPP of colonies of Vibrio sucrose positive and negative, and identification of species in samples of shrimp and water. The minimum value of the CPP of Vibrio in the water samples was 2.0 x 102 CFU / mL in farms A and C in the period of rain and the maximum was 1.42 x 108 CFU / mL in farm B, in the period of summer . The maximum value for CPP of Vibrio in samples of shrimp (post-larva and hepatopÃncreas) was 4.5 x 108 CFU / g in farm B during the summer. The minimum value of sucrose positive Vibrio in hepatopÃncreas was 1.00 x 102 CFU / g in farms A and B in the period of rainfall and maximum was 4.5 x 108 CFU / g in farm B, in the period of summer. The minimum value of sucrose negative Vibrio was 0.98 x 10 CFU / g of hepatopÃncreas in farm A, the maximum period of rain and was 9.50 x 105 C on the farm during the rain. The CPP of Vibrio from water samples and the shrimp was always lower during the rain. Of water samples and the three shrimp farms were isolated 145 strains of Vibrio. Of these, 62 were isolated from the water culture of shrimp and 56 were isolated from shrimp (post-larva and hepatopÃncreas). The farm B showed the largest number of species isolated and identified (11). During esquisa, isolated from the shrimp and water in the nursery, showed a predominance of Vibrio mimicus, followed by V.alginolyticus and V. tubiashii. Of all the farms, A, B and C, Afoi farm that had a nursery with the lowest survival rate of shrimps in despesca: 37.24%, during the chuva.Nem the amount of Vibrio total nor the sucrose positive or negative in hepatopÃncreas of shrimp, influences the rate of survival of animals in the nursery of the farms at the despesca. The greater or lesser diversity of Vibrio in shrimp did not involve a greater or lesser rate of survival of animals in the nursery of the farms at the despesca. However, when the number of Vibrio in the water was high and low diversity, the case of Finance during the rain, the survival rate was affected negatively. The number of Vibrio is proportional to the level of salinity of water. Only data from the enumeration of Vibrio and / or data from the enumeration of Vibrio sucrose positive or negative is not sufficient to assess the likelihood of shrimp in a nursery, will sicken.
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10

Mayer, Cintia Carolina da Silva. "Detecção molecular e resistência a antimicrobianos no grupo V. fluvialis - V. furnissii". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/6/6135/tde-28102010-144542/.

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Introdução - Vibrio fluvialis é um microorganismo que provoca a gastroenterite muito semelhante à cólera, mas também há relatos de casos extra-intestinais como sepse, ferida, peritonite e celulite hemorrágica e encefalite. Acredita-se que a infecção por esse microorganismo esteja vinculada ao consumo de peixes crus ou mal cozidos contaminados e / ou frutos do mar. A identificação dessa bactéria por métodos fenotípicos continua a ser um problema devido à sua grande semelhança com Aeromonas hydrophila e V.furnissii; por isso, a utilização de uma ferramenta de diferenciação entre essas espécies é importante. Nas últimas décadas, o aumento da resistência aos antimicrobianos tem sido um fator preocupante, porque ela interfere na escolha dos medicamentos para o tratamento eficaz e há uma necessidade de rápida produção de novos antibióticos. Ambientes costeiros e estuários estão em perigo de serem contaminados por esgoto, que pode conter drogas que agem de forma seletiva, permitindo o desenvolvimento de resistência aos antimicrobianos. Vários estudos demonstraram que estirpes clínicas de V. fluvialis são resistentes a múltiplas drogas. Objetivos - Desenvolver um marcador molecular baseado no 16S rDNA capaz de detectar o grupo V. fluvialis-V. furnissii, e avaliar a susceptibilidade a antibióticos destas espécies, principalmente a partir de amostras ambientais. Métodos - Após a elaboração dos iniciadores a partir do alinhamento das espécies do gênero Vibrio, foram utilizadas cepas identificadas fenotipicamente como V. fluvialis e de V. furnissii para a sua detecção molecular. O perfil de susceptibilidade a antibióticos pelo método da disco-difusão foi realizada, assim como a investigação molecular da presença do elemento SXT e de seus genes de resistência a antimicrobianos. Resultados: Com a utilização dos iniciadores desenvolvidos foi possível confirmar corretamente as espécies. Observou-se alta porcentagem de resistência a ampicilina e cefalotina, sendo que 65,9por centode V. fluviais e 43,24por centode V. furnissi apresentaram resistência a pelo menos dois dos antibióticos utilizados. Somente em uma cepa de V. fluvialis detectou-se a presença de SXT e houve uma banda desconhecida de alto peso molecular quando da pesquisa do gene sulII. Conclusões: O método molecular mostrou ser um importante instrumento para se detectar espécies altamente relacionadas. Foram detectadas cepas resistentes a múltiplos antibióticos, indicando que o meio ambiente é um provável reservatório de genes de resistência; porém necessita-se de futuras investigações moleculares para se determinar o papel destes e sua possível associação com elementos genéticos. A detecção do elemento SXT sem a presença dos seus genes de resistência conhecidos atualmente reforça a idéia da extensão de seu papel adaptativo, além de ser o primeiro relato de sua existência na América do Sul
Introduction - Vibrio fluvialis is a microorganism that causes gastroenteritis very similar to cholera, however there are also reports of extraintestinal cases as sepse, skin wounds, peritonitis and hemorrhagic cellulitis and cerebritis. It is believed that infection by this organism is linked to the consumption of raw or undercooked contaminated fish and / or seafood. Identification of this bacteria by phenotypic methods remains a problem due to its great similarity with Aeromonas hydrophila and V.furnissii, therefore the use of a tool to differentiate these species is important. In recent decades, increasing antimicrobial resistance has been a concerning factor because it interferes in the choice of drugs for effective treatment and there is a need for rapid production of new antibiotics. Coastal and estuarine environments are in danger of being contaminated by sewage, which may contain drugs that will act selectively, allowing the development of antimicrobial resistance. Several studies have demonstrated that clinical strains of V. fluvialis are resistant to multiple drugs. Objectives - To develop a 16S rDNA - molecular marker able to detect the group V. fluvialis-V.furnissii, and to evaluate the antibiotic susceptibility of this species mainly from environmental samples. Methods - After the development of primers from alignment of the genus Vibrio strains phenotypically identified as V. fluvialis and V. furnissii were used for their molecular identification. The profile of antibiotic susceptibility was performed by the disk diffusion method, and the molecular investigation of the presence of the SXT element and their antimicrobial resistance genes. Results - The primers developed were able to confirm correctly the species. A high percentage of resistance to ampicillin and cephalothin was observed, V. fluvialis and V. furnissii showed resistance to at least two of the antibiotics used, 65.9 per cent and 43.24 per cent respectively. Only in one strain of V. fluvialis we detected presence of SXT and there was an unknown band of high molecular weight when we investigated gene sulII. Conclusions - Molecular identification has proved to be an important tool for differentiating highly related species. Strains resistant to multiple antibiotics were detected, indicating that the environment is likely a reservoir for resistance genes, but it is needed further molecular investigations to determine their role and their possible association with genetic elements. Detection of the SXT element without the presence of its known resistance genes reinforces the idea of the extent of its adaptive role, and this is the first report of its existence in South America
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Libri sul tema "Vibrio"

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Sikora, Aleksandra E., a cura di. Vibrio Cholerae. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-8685-9.

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Almagro-Moreno, Salvador, e Stefan Pukatzki, a cura di. Vibrio spp. Infections. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22997-8.

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Kaye Wachsmuth, I., Paul A. Blake e Ørjan Olsvik, a cura di. Vibrio cholerae and Cholera. Washington, DC, USA: ASM Press, 1994. http://dx.doi.org/10.1128/9781555818364.

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1935-, Takeda Yoshifumi, a cura di. Vibrio cholerae and cholera. Tokyo: KTK Scientific Publishers, 1988.

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L, Thompson F., Austin B. 1951-, Swings J. G e American Society for Microbiology, a cura di. The biology of vibrios. Washington, D.C: ASM Press, 2006.

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M, Faruque Shah, e Nair G. Balakrish, a cura di. Vibrio cholerae: Genomics and molecular biology. Norfolk: Caister Academic Press, 2008.

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Drasar, B. S., e B. D. Forrest, a cura di. Cholera and the Ecology of Vibrio cholerae. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1515-2.

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Bruno, David W. Cold water vibriosis caused by Vibrio salmonicida. Aberdeen: Scottish Office Agriculture andFisheries Department, Marine Laboratory, 1996.

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S, Drasar B., e Forrest B. D, a cura di. Cholera and the ecology of Vibrio cholerae. London: Chapman & Hall, 1996.

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Parker, James N., e Philip M. Parker. The official patient's sourcebook on vibrio vulnificus infection. A cura di Icon Group International Inc. San Diego, Calif: Icon Health Publications, 2002.

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Capitoli di libri sul tema "Vibrio"

1

Bhunia, Arun K. "Vibrio cholerae, Vibrio parahaemolyticus, and Vibrio vulnificus". In Foodborne Microbial Pathogens, 315–29. New York, NY: Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-7349-1_18.

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Fengler, Ingo. "Vibrio". In Lexikon der Infektionskrankheiten des Menschen, 879–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-39026-8_1165.

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Di Lorenzo, Manuela, Michiel Stork, Alejandro F. Alice, Claudia S. López e Jorge H. Crosa. "Vibrio". In Iron Transport in Bacteria, 241–55. Washington, DC, USA: ASM Press, 2014. http://dx.doi.org/10.1128/9781555816544.ch16.

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Liu, Dongyou. "Vibrio". In Handbook of Foodborne Diseases, 443–48. Boca Raton : Taylor & Francis, [2019] | Series: Food microbiology series | “A CRC title, part of the Taylor & Francis imprint, a member of the Taylor & Francis Group, the academic division of T&F Informa plc.”: CRC Press, 2018. http://dx.doi.org/10.1201/b22030-41.

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Gooch, Jan W. "Vibrio". In Encyclopedic Dictionary of Polymers, 931. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_15084.

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Parveen, Salina, e Mark L. Tamplin. "Vibrio vulnificus,Vibrio parahaemolyticusandVibrio cholerae". In Guide to Foodborne Pathogens, 148–76. Oxford: John Wiley & Sons, 2013. http://dx.doi.org/10.1002/9781118684856.ch9.

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da Silva, Neusely, Marta Hiromi Taniwaki, Valéria Christina Amstalden Junqueira, Neliane Ferraz de Arruda Silveira, Margarete Midori Okazaki e Renato Abeilar Romeiro Gomes. "Vibrio cholerae and Vibrio parahaemolyticus". In Microbiological Examination Methods of Food and Water, 299–323. Second edition. | Leiden, The Netherlands ; Boca Raton : CRC Press/Balkema, [2018]: CRC Press, 2018. http://dx.doi.org/10.1201/9781315165011-20.

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da Silva, Neusely, Marta Hiromi Taniwaki, Valéria Christina Amstalden Junqueira, Neliane Ferraz de Arruda Silveira, Margarete Midori Okazaki e Renato Abeilar Romeiro Gomes. "Vibrio cholerae and Vibrio parahaemolyticus". In Microbiological Examination Methods of Food and Water, 299–323. Second edition. | Leiden, The Netherlands ; Boca Raton : CRC Press/Balkema, [2018]: CRC Press, 2017. http://dx.doi.org/10.1201/b13740-20.

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Kim, Dong Wook. "Vibrio cholerae". In DNA Methods in Food Safety, 359–79. Chichester, UK: John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118278666.ch15.

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Coia, John, e Heather Cubie. "Vibrio species". In The Immunoassay Kit Directory, 975–76. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-009-0359-3_39.

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Atti di convegni sul tema "Vibrio"

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L.A., Bugaev, Voikina A.V., Morozova M.A. e Maltsev V.N. "APPROACHES TO DETERMINING THE WELL-BEING OF MARICULTURAL OYSTER FARMS". In II INTERNATIONAL SCIENTIFIC AND PRACTICAL CONFERENCE "DEVELOPMENT AND MODERN PROBLEMS OF AQUACULTURE" ("AQUACULTURE 2022" CONFERENCE). DSTU-Print, 2022. http://dx.doi.org/10.23947/aquaculture.2022.32-36.

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The paper presents the results of studies of the parasitological, infectious and biochemical status of the giant oyster (Crassostrea gigas) from the Black Sea mariculture farms. The studies were carried out in May and August 2020. The occurrence of pathogens of clionosis, polydorosis, hexamitosis in oysters grown in the Black Sea was revealed. Vibrios Vibrio pomeroyi, V. gigantis, V. pacinii, V. harveyi, V. alginolyticus, V. fortis were isolated among the causative agents of infectious diseases of molluscs, of which Vibrio pomeroyi, V. alginolyticus were recognized as pathogenic for Crassostrea gigas. The reference ranges of indicators of enzymes of the antioxidant complex were determined. The obtained data allow planning both preventive and therapeutic measures on oyster farms.
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Chen, Wenbo, Yingxue Qin e Qingpi Yan. "Intracellular survival of Vibrio anguillarum". In 2010 3rd International Conference on Biomedical Engineering and Informatics (BMEI). IEEE, 2010. http://dx.doi.org/10.1109/bmei.2010.5639742.

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Konnov, Nikolai P., Vil B. Baiburin, Svetlana P. Zadnova e Uryi P. Volkov. "Comparative microscopy study of Vibrio cholerae flagella". In BiOS '99 International Biomedical Optics Symposium, a cura di Eiichi Tamiya e Shuming Nie. SPIE, 1999. http://dx.doi.org/10.1117/12.350626.

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"Application of machine learning models to predict ecotoxicity of ionic liquids (Vibrio fischeri) using VolSurf principal properties". In Sustainable Processes and Clean Energy Transition. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902516-27.

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Abstract. Owing to the rapid growth in IL synthesis due to feasible cation–anion combinations, knowledge of their toxicity is pertinent for their successful application. Toxicity information measurement of various ILs on a broad spectrum of conditions through experimental techniques is way demanding on time, resources, and is at times impractical. Various research works have been performed in Quantitative Structure Activity/Property Relationship (QSAR/QSPR) for IL toxicity prediction. In this study, ML models have been trained and tested on Vibrio fischeri toxicity data set using in silico principal properties (PPs) as descriptors. Deploying this properties aid in considering both the effect of cations and anions on Vibrio fischeri toxicity prediction. Among the models trained, the Random Forest model proved to be the most precise nevertheless, decision tree model was the most accurate and consistent. Considering the importance of the descriptors to Vibrio fischeri toxicity selection techniques and model optimization.
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Saeed, F., N. Organti, M. A. Javed e S. Trottier. "Refractory Shock and Septic Arthritis Due to Vibrio Vulnificus". 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.a6627.

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MIYAMOTO, C., N. SKOURIS, S. HOSSEINKHANI, LY LIN e EA MEIGHEN. "COMMON FEATURES OF THE QUORUM SENSING SYSTEMS IN VIBRIO SPECIES". In Bioluminescence and Chemiluminescence - Progress and Current Applications - 12th International Symposium on Bioluminescence (BL) and Chemiluminescence (CL). WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812776624_0021.

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Saraswathy, R., G. Krithika, M. Muralidhar, D. Thulasi, N. Lalitha, A. Nagavel e R. Jayavel. "Antibacterial efficacy of zinc oxide (ZnO) nanoparticles on Vibrio anguillarum". In 2013 International Conference on Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET). IEEE, 2013. http://dx.doi.org/10.1109/icanmeet.2013.6609295.

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MIYAMOTO, CAROL, JAI CHATTERJEE, YIHSING LIN e EDWARD MEIGHEN. "MULTIPLE REGULATORY PROTEINS CONTROL INDUCTION OF LUMINESCENCE IN VIBRIO HARVEYI". In Proceedings of the 11th International Symposium. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812811158_0030.

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Tian, Yiling, Yunzhe Zhang, Hui Shi e Wei Zhang. "Identification of Vibrio parahaemolyticus Strains by means of HPLC fingerprinting". In 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icmemtc-16.2016.18.

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Mourino-Perez, Rosa R., e Josue Alvarez-Borrego. "Color correlation for the recognition of Vibrio cholerae O1 in seawater". In ICO XVIII 18th Congress of the International Commission for Optics, a cura di Alexander J. Glass, Joseph W. Goodman, Milton Chang, Arthur H. Guenther e Toshimitsu Asakura. SPIE, 1999. http://dx.doi.org/10.1117/12.354900.

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Rapporti di organizzazioni sul tema "Vibrio"

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Rivera, S., T. Lugo e T. C. Hazen. Autecology of Vibrio vulnificus and Vibrio parahaemolyticus in tropical waters. Office of Scientific and Technical Information (OSTI), dicembre 1988. http://dx.doi.org/10.2172/355031.

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Buckley, Patricia E., James J. Valdes e Kevin P. O'Connell. Construction and Analysis of a MutL Knockout Strain of Vibrio cholerae. Fort Belvoir, VA: Defense Technical Information Center, ottobre 2007. http://dx.doi.org/10.21236/ada473545.

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Perez-Rosas, N., e T. C. Hazen. Survival and distribution of Vibrio cholerae in a tropical rain forest stream. Office of Scientific and Technical Information (OSTI), dicembre 1988. http://dx.doi.org/10.2172/666266.

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Keur, M. C., e N. H. B. M. Kaag. Toxicity of 3 water samples tested with the Bacteria luminescence inhibition testusing Vibrio fischeri (Microtox) : Test report. Den Helder: Wageningen Marine Research, 2019. http://dx.doi.org/10.18174/499253.

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Baliarsingh, Snigdha, e Bharat Bhusan Patnaik. Identification of Novel Lectins from Freshwater Prawn, Macrobrachium rosenbergii, and Expression Analysis in Response to Vibrio harveyi and M. rosenbergii nodavirus. Peeref, luglio 2022. http://dx.doi.org/10.54985/peeref.2207p9700127.

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Chisholm, Sally, Martin F. Polz e Eric J. Alm. Final Report: DOE award: ER64516-1031199-0013966 2007-2011 Genomic Structure, Metagenomics, Horizontal Gene Transfer, and Natural Diversity of Prochlorococcus and Vibrio. Office of Scientific and Technical Information (OSTI), agosto 2013. http://dx.doi.org/10.2172/1089668.

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Yeates, Elissa, Kayla Cotterman e Angela Rhodes. Hydrologic impacts on human health : El Niño Southern Oscillation and cholera. Engineer Research and Development Center (U.S.), gennaio 2020. http://dx.doi.org/10.21079/11681/39483.

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A non-stationary climate imposes considerable challenges regarding potential public health concerns. The El Niño Southern Oscillation (ENSO) cycle, which occurs every 2 to 7 years, correlates positively with occurrences of the waterborne disease cholera. The warm sea surface temperatures and extreme weather associated with ENSO create optimal conditions for breeding the Vibrio cholerae pathogen and for human exposure to the pathogenic waters. This work explored the impacts of ENSO on cholera occurrence rates over the past 50 years by examining annual rates of suspected cholera cases per country in relation to ENSO Index values. This study provides a relationship indicating when hydrologic conditions are optimal for cholera growth, and presents a statistical approach to answer three questions: Are cholera outbreaks more likely to occur in an El Niño year? What other factors impact cholera outbreaks? How will the future climate impact cholera incidence rates as it relates to conditions found in ENSO? Cholera outbreaks from the 1960s to the present are examined focusing on regions of Central and South America, and southern Asia. By examining the predictive relationship between climate variability and cholera, we can draw conclusions about future vulnerability to cholera and other waterborne pathogenic diseases.
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Kasim, K. NuSTAR: Vibro-Acoustic Tests. Office of Scientific and Technical Information (OSTI), settembre 2004. http://dx.doi.org/10.2172/833120.

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Smith, James Arthur, James Keith Jewell e James Edwin Lee. Vibro-acoustic Imaging at the Breazeale Reactor. Office of Scientific and Technical Information (OSTI), settembre 2016. http://dx.doi.org/10.2172/1374499.

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Mascarenas, David D., e Yunshil Choi. Measurement Human Cognitive Working Memory Capacity under Vibro-Tactile Stimulation. Office of Scientific and Technical Information (OSTI), febbraio 2013. http://dx.doi.org/10.2172/1062700.

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