title: Rotavirus infection in calves in Bangladesh.
abstract: Faecal samples from 434 calves under 1 year of age (307 diarrhoeal and 127 normal) were collected from three dairy farms and one village in selected areas of Bangladesh. The samples were tested by an enzyme-linked immunosorbent assay (ELISA) to detect the presence of rotavirus antigen. Of 402 dairy calves tested, 28 (7.0%) were positive, of which 21 (7.2%) were from diarrhoeic calves and 7 (6.3%) from non-diarrhoeic calves. Rotavirus infection varied from farm to farm (2.7-9.2%) and there was no positive response from any of the 32 village calves. Rotavirus was most commonly found in calves of 1 week of age or less (up to 22.2% in one group) but was not found in any calves later than 6 months of age. More than 80% of rotavirus-positive samples from diarrhoeic calves exhibited a titre of 128 or more (geometric mean 345 +/- 4.5), whereas non-diarrhoeal calves had titres less than or equal to 128 (geometric mean = 29 +/- 1.9), suggesting that rotavirus infection in calves in Bangladesh was mostly associated with diarrhoea.
authors.affiliation: International Centre for Diarrhoeal Diseases Research, Bangladesh (ICDDR,B), Dhaka.
authors.forename: S A
authors.initials: SA
authors.lastname: Selim
authors.forename: K M
authors.initials: KM
authors.lastname: Aziz
authors.forename: A J
authors.initials: AJ
authors.lastname: Sarker
authors.forename: H
authors.initials: H
authors.lastname: Rahman
mesh_terms: D000367:Age Factors; D000818:Animals; D000956:Antigens, Viral / Q000032:analysis; D001459:Bangladesh / Q000453:epidemiology; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D003967:Diarrhea / Q000382:microbiology / Q000662:veterinary; D004797:Enzyme-Linked Immunosorbent Assay; D005243:Feces / Q000382:microbiology; D015995:Prevalence; D012401:Rotavirus / Q000276:immunology; D012400:Rotavirus Infections / Q000453:epidemiology / Q000662:veterinary*
chemical_list: D000956:Antigens, Viral