Typing and antibiotic susceptibility patterns of Vibrio cholerae during six consecutive cholera seasons in north India.
A total of 10,427 diarrhoeal stool specimens were cultured for Vibrio cholerae between 1992 and 1997. The isolation rates were 2%, 2.6%, 6.7%, 7.08%, 0.9% and 2.6% in the years from 1992 to 1997 respectively. Till 1992, Vibrio cholerae 01 ogawa was the predominant strain. In 1993, 81.3% of the isolates were of 0139 Bengal strain and the rest were V. cholerae 01. From 1994 to 1997, V. cholerae 01 ogawa was the predominant strain and there were no isolation of 0139 strain. The predominant phage type in 1992 and 1993 were T2 and T27 thereafter. Most Vibrio cholerae strains were sensitive to tetracycline, gentamycin, netromycin, norfloxacin and furazolidine. Strains were resistant to cotrimaxozole till 1996, but were 100% sensitive in 1997. Strains were sensitive to chloramphenicol till 1993 but acquired resistance thereafter.
Kaur
H
H
Department of Microbiology, Christian Medical College, Punjab, India.
Lal
M
M
D002771:Cholera / Q000453:epidemiology / Q000382:microbiology*; D006801:Humans; D007194:India / Q000453:epidemiology; D008826:Microbial Sensitivity Tests; D014734:Vibrio cholerae / Q000145:classification* / Q000187:drug effects*