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Trans R Soc Trop Med Hyg. 1989 Jul-Aug;83(4):520-1.

Occurrence and significance of Cryptosporidium infection in Calcutta.

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Department of Microbiology and Clinical Medicine, National Institute of Cholera and Enteric Diseases (ICMR), Calcutta, India.


During a 2-year study, Cryptosporidium oocysts were detected in 32 (5.6%) of 566 hospitalized paediatric diarrhoea cases and 2 (1.2%) of 167 non-diarrhoeic individuals. Cryptosporidium was the sole pathogen detected in 17 (3.0%) of the 32 positive cases; in the other 15 it occurred in combination with one or more other established enteropathogen(s). The frequency of detection of the parasite was highest in the 0-6 months age group; no sex-specific difference was discernible. The detection rate of the parasite was highest during the monsoon and post-monsoon months. Most of the patients had watery stools with a mild to moderate degree of dehydration, with the diarrhoea lasting for less than 7 d.

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