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Journal of Clinical Microbiology, July 2002, p. 2635-2637, Vol. 40, No. 7
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.7.2635-2637.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.

Escalating Association of Vibrio cholerae O139 with Cholera Outbreaks in India

Sutapa Sinha,1 Rupa Chakraborty,1 Keya De,1 Asis Khan,1 Simanti Datta,1 T. Ramamurthy,1 S. K. Bhattacharya,1 Yoshifumi Takeda,2 and G. Balakrish Nair1,3*

National Institute of Cholera and Enteric Diseases, Calcutta, India,1 Faculty of Human Life Sciences, Jissen Women's University, Tokyo 181-8510, Japan,2 International Centre for Diarrhoeal Disease Research, Bangladesh, Dhaka, Bangladesh3

Received 10 December 2001/ Returned for modification 7 March 2002/ Accepted 10 April 2002

Between December 1999 and December 2000, teams from the National Institute of Cholera and Enteric Diseases, Calcutta, India, examined eight outbreaks of cholera, which occurred in different parts of the country distant from each other. In two of these outbreaks each, only V. cholerae O1 biotype ElTor or V. cholerae O139 could be isolated, while in the remaining four outbreaks, both O1 and O139 were isolated. The interesting feature is the escalating association of V. cholerae O139 with outbreaks of cholera; two of the most recent outbreaks, one in Calcutta and one in Orissa, were caused exclusively by O139. The O139 strains from the six different outbreaks were genotypically closely related. These trends indicate a shift in the outbreak propensity of V. cholerae O139.


* Corresponding author. Mailing address: Laboratory Sciences Division, International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR, B), Mohakhali, Dhaka-1212, Bangladesh. Phone: 880-2-9886464. Fax: 880-2-8823116 or -8812529. E-mail: gbnair{at}icddrb.org.


Journal of Clinical Microbiology, July 2002, p. 2635-2637, Vol. 40, No. 7
0095-1137/02/$04.00+0     DOI: 10.1128/JCM.40.7.2635-2637.2002
Copyright © 2002, American Society for Microbiology. All Rights Reserved.




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