Development and Evaluation of a PCR Assay for Tracking the Emergence and Dissemination of Haitian Variant ctxB in Vibrio cholerae O1 Strains Isolated from Kolkata, India

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Development and evaluation of a PCR assay for tracking the emergence and dissemination of Haitian variant ctxB in Vibrio cholerae O1 strains isolated from Kolkata, India.

A PCR-based assay was developed to discriminate the classical, El Tor, and Haitian types of ctxB alleles. Our retrospective study using this newly developed PCR showed that Haitian ctxB first appeared in Kolkata during April 2006, and 93.3% of strains isolated during 2011 carried the new allele. Dendrogram analysis showed a pulsed-field gel electrophoresis (PFGE) pattern of the new variant stra...

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Classical ctxB in Vibrio cholerae O1, Kolkata, India

Viral and immunologic examination of human immunodefi ciency virus type-1 infected , persistently seronegative persons. Rapid disease progression without sero-conversion following primary human im-munodefi ciency virus type 1 infection— evidence for highly susceptible human hosts. J, et al. Human immunodefi ciency virus infection and AIDS in a person with negative serology. humoral and cellular...

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Haitian variant tcpA in Vibrio cholerae O1 El Tor strains in Kolkata, India.

Priyanka Ghosh, Arindam Naha, Surajit Basak, Santanu Ghosh, T. Ramamurthy, Hemanta Koley, Ranjan K. Nandy, Sumio Shinoda, Haruo Watanabe, Asish K. Mukhopadhyay Division of Bacteriology, National Institute of Cholera and Enteric Diseases (NICED), Kolkata, India; Department of Molecular Biology & Bioinformatics and Bioinformatics Centre, Tripura University, Tripura, India; Collaborative Research ...

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Clinical Isolates of Vibrio cholerae O1 El Tor Ogawa of 2009 from Kolkata, India: Preponderance of SXT Element and Presence of Haitian ctxB Variant

BACKGROUND Increase in the number of multidrug resistant pathogens and the accompanied rise in case fatality rates has hampered the treatment of many infectious diseases including cholera. Unraveling the mechanisms responsible for multidrug resistance in the clinical isolates of Vibrio cholerae would help in understanding evolution of these pathogenic bacteria and their epidemic potential. This...

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Tetracycline-Resistant Vibrio cholerae O1, Kolkata, India

To the Editor: Cholera, caused by toxigenic strains of Vibrio cholerae O1 or O139, continues to be a major cause of illness and death, particularly in developing countries. Treatment consists of early administration of rehydration therapy with appropriate oral or intravenous fl uids. The World Health Organization recommends antimicrobial drug treatment for severely dehydrated patients with susp...

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ژورنال

عنوان ژورنال: Journal of Clinical Microbiology

سال: 2012

ISSN: 0095-1137

DOI: 10.1128/jcm.00387-12