Article Abstract:
Many tube-wells in Bangladesh are contaminated with zooplankton and bacteria and do not meet the drinking water standards of the World Health Organization. About 90% of the rural population of Bangladesh use these wells for their drinking water.
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Article Abstract:
A study of epidemiology and ecology of Vibrio cholerae O1 and O139 was carried out in two coastal areas, Bakerganj and Mathbaria, Bangladesh where cholera occurs seasonally. The results of bi-weekly clinical study employing culture methods, direct and enrichment culture, colony blot hybridization and direct fluorescent-antibody methods showed that cholera is endemic in both Bakerganj and Mathbaria and that V. cholerae O1, O139, and nonO1/nonO139 are autochthonous to aquatic environment.
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Article Abstract:
Filtering raw water with a nylon net or sari material removes 99% of the Vibrio cholerae cells attached to planktons. The filtration method is effective for V. cholerae cells of different serogroups, and environmental and clinical strains. It removes the O1 and O139 strains that cause cholera. Three folds of the filter material are necessary for effective filtration. The filter material can be freed from V. cholerae cells by exposing it to direct sunlight for two hours. The method is useful for preventing cholera epidemics in developing countries, especially during monsoons.
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