Survival of classic cholera in Bangladesh

During the present cholera pandemic the El Tor biotype of Vibrio cholerae has completely displaced the classic biotype, except in Bangladesh. We studied the distribution of these two biotypes in twenty-four rural districts during epidemics in 1988-89; there was clustering of the classic biotype in t...

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Bibliographic Details
Published in:The Lancet (British edition) 1991-05, Vol.337 (8750), p.1125-1127
Main Authors: Siddique, A.K., Baqui, A.H., Eusof, A., Haider, K., Hossain, M.A., Bashir, I., Zaman, K.
Format: Article
Language:English
Subjects:
Bacterial diseases
Bangladesh - epidemiology
Biological and medical sciences
Biotypes
Cholera
Cholera - epidemiology
Cholera - microbiology
Coastal zone
Demographics
Disease Outbreaks
Ecology
Epidemics
Human bacterial diseases
Humans
Infectious diseases
Medical research
Medical sciences
Minority & ethnic groups
Pandemics
Population
Prevalence
Rural Health
Serotyping
Space-Time Clustering
Tropical bacterial diseases
Tropical medicine
Vibrio cholerae - classification
Water Microbiology
Waterborne diseases
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Summary:During the present cholera pandemic the El Tor biotype of Vibrio cholerae has completely displaced the classic biotype, except in Bangladesh. We studied the distribution of these two biotypes in twenty-four rural districts during epidemics in 1988-89; there was clustering of the classic biotype in the southern region and of the El Tor biotype in all other regions. These findings suggest that the southern coastal region is now (and may always have been) the habitat of classic cholera. The selective distribution of V cholerae 01 biotypes in Bangladesh may have been affected by ecological changes occurring in the country.
ISSN:0140-6736
1474-547X
DOI:10.1016/0140-6736(91)92789-5