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Volume 6, Number 2—April 2000

Research

Vibrio cholerae O139 in Calcutta, 1992-1998: Incidence, Antibiograms, and Genotypes

Arnab Basu*, Pallavi Garg*, Simanti Datta*, Soumen Chakraborty*, Tanuja Bhattacharya*, Asis Khan*, T. Ramamurthy*, S.K. Bhattacharya*, Shinji Yamasaki†, Yoshifumi Takeda‡, and G. Balakrish Nair*Comments to Author 
Author affiliations: *National Institute of Cholera and Enteric Diseases, Calcutta, India; †International Medical Center of Japan, Tokyo, Japan; and ‡National Institute of Infectious Diseases, Tokyo, Japan

Main Article

Table 2

Isolation rates of Vibrio cholerae O139 from patients with acute secretory diarrhea admitted to the Infectious Diseases Hospital, Calcutta, 1992-1998

No. (%) of samples positive for V. cholerae
Year No. of samples screened Total positive (%) O1 O139 Non-O1
1992 359 131 (36.5) 102 (28.4) 10 (2.8) 19 (5.3)
1993 890 491 (55.2) 24 (2.7) 443 (49.8) 24 (2.7)
1994 748 400 (53.5) 296 (39.7) 67 (8.9) 37 (4.9)
1995 873 399 (45.7) 305 (34.9) 62 (7.1) 32 (3.7)
1996 1746 399 (22.9) 234 (13.4) 62 (3.6) 103 (5.9)
1997 1643 397 (24.2) 114 (6.9) 196 (11.9) 87 (5.3)
1998 2118 642 (30.3) 416 (19.7) 73 (3.4) 153 (7.2)

Main Article

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