نتایج جستجو برای: vibrio cholerae o1

تعداد نتایج: 18194  

2017
Victoria Hall Carlota Medus George Wahl Alida Sorenson Melanie Orth Monica Santovenia Erin Burdette Kirk Smith

On August 20, 2016, the Minnesota Department of Health (MDH) was notified of a case of Vibrio cholerae infection. The isolate was identified as serogroup O1, serotype Inaba at MDH. CDC determined that the isolate was nontoxigenic. The patient was a previously healthy woman, aged 43 years, with history of gastric bypass surgery. On August 16, she experienced profuse watery diarrhea, vomiting, ab...

Journal: :PLoS Pathogens 2007
Melanie Blokesch Gary K Schoolnik

The environmental reservoirs for Vibrio cholerae are natural aquatic habitats, where it colonizes the chitinous exoskeletons of copepod molts. Growth of V. cholerae on a chitin surface induces competence for natural transformation, a mechanism for intra-species gene exchange. The antigenically diverse O-serogroup determinants of V. cholerae are encoded by a genetically variable biosynthetic clu...

2016
Akinsinde Kehinde Adewale Gururaja Perumal Pazhani Iwalokun Bamidele Abiodun Oluwadun Afolabi Olukoya Daniel Kolawole Asish K Mukhopadhyay Thanadarayan Ramamurthy

BACKGROUND AND OBJECTIVES The antimicrobial susceptibility patterns and genetic characteristics of Vibrio cholerae O1, which is responsible for several cholera epidemics in Nigeria, are not reported in detail since 2007. In this study, we screened V. cholerae O1 El Tor biotype isolates from cholera cases and water samples from different states to investigate their phenotypic and genetic attribu...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2003
Shah M Faruque David A Sack R Bradley Sack Rita R Colwell Yoshifumi Takeda G Balakrish Nair

The emergence of Vibrio cholerae O139 Bengal during 1992-1993 was associated with large epidemics of cholera in India and Bangladesh and, initially, with a total displacement of the existing V. cholerae O1 strains. However, the O1 strains reemerged in 1994 and initiated a series of disappearance and reemergence of either of the two serogroups that was associated with temporal genetic and phenot...

2013
Neha Rajpara Kittappa Vinothkumar Priyabrata Mohanty Arun Kumar Singh Rajesh Singh Ritam Sinha Dhrubajyoti Nag Hemanta Koley Ashima Kushwaha Bhardwaj

BACKGROUND Vibrio cholerae non-O1/ non-O139 serogroups have been reported to cause sporadic diarrhoea in humans. Cholera toxins have been mostly implicated for hypersecretion of ions and water into the small intestine. Though most of the V. cholerae non-O1/ non-O139 strains lack these cholera toxins, several other innate virulence factors contribute towards their pathogenicity. The environmenta...

2013
Kazuhisa Okada Amonrattana Roobthaisong Witaya Swaddiwudhipong Shigeyuki Hamada Siriporn Chantaroj

regions would be conserved differently must be considered. It is probable that subsequent sequences of HGyVs remain to be identified in human blood. A recent study reported the characterization of a highly divergent GyV sequence (GyV4) in human fecal samples and chicken meat (7); as with avian GyV2 and GyV3, further research is needed to determine whether this variant replicates in the human bo...

2015
Fahima Chowdhury Alison E. Mather Yasmin Ara Begum Muhammad Asaduzzaman Nabilah Baby Salma Sharmin Rajib Biswas Muhammad Ikhtear Uddin Regina C. LaRocque Jason B. Harris Stephen B. Calderwood Edward T. Ryan John D. Clemens Nicholas R. Thomson Firdausi Qadri Ruifu Yang

BACKGROUND Cholera is endemic in Bangladesh, with outbreaks reported annually. Currently, the majority of epidemic cholera reported globally is El Tor biotype Vibrio cholerae isolates of the serogroup O1. However, in Bangladesh, outbreaks attributed to V. cholerae serogroup O139 isolates, which fall within the same phylogenetic lineage as the O1 serogroup isolates, were seen between 1992 and 19...

2012
Kimberley D. Seed Shah M. Faruque John J. Mekalanos Stephen B. Calderwood Firdausi Qadri Andrew Camilli

The Vibrio cholerae lipopolysaccharide O1 antigen is a major target of bacteriophages and the human immune system and is of critical importance for vaccine design. We used an O1-specific lytic bacteriophage as a tool to probe the capacity of V. cholerae to alter its O1 antigen and identified a novel mechanism by which this organism can modulate O antigen expression and exhibit intra-strain hete...

Journal: :Microbiology 2007
M Labbate Y Boucher M J Joss C A Michael M R Gillings H W Stokes

Approximately 200 serogroups of Vibrio cholerae exist, with only two, O1 and O139, responsible for epidemic and pandemic cholera. Strains from these serogroups have evolved from a common progenitor, with lateral gene transfer largely driving their emergence. These strains are so closely related that separation using single- or multi-locus phylogeny has proven difficult. V. cholerae strains cont...

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