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*
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) | |||
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