Prevalence of porcine rotavirus infection in Zimbabwe
1990
Joergensen, P.H. (Ministry of Lands, Agriculture and Water Development, Harare (Zimbabwe). Veterinary Research Laboratory) | Odiawo, G.O. | Halliwell, R.W. (University of Zimbabwe, Harare (Zimbabwe). Faculty of Veterinary Science)
The aim of this study was to provide information on the prevalence of rotavirus shedding among piglets on three big farms in Zimbabwe during a period of approximately one and half years. Faecal samples were collected from 662 piglets, less than five weeks of age, from three farms (1, 11 and 111) around Harare for a period of 17 months during the years 1987 and 1988. The samples were tested for the presence of rotavirus by enzyme-linked immunosorbent assay (ELISA). Rotavirus was detected in 217 (33) of the samples tested. Different and statistically significant positive samples were found on the three farms (24, 41 and 34) respectively. Out of 40 samples from diarrhoeic piglets, 22 (55) were positive for rotavirus and in 9 of 43 (21) healthy piglets, giving a statistically significant difference between diarrhoeic and non-diarrhoeic piglets shedding the virus. Seasonal influence in the overall prevalence of positive samples was detected; the highest rates being found in the cool, dry months of the year. The presence of some pathogenic strains of Escherichia coli was detected by faecal culture from diarrhoeic and non-diarrhoeic piglets
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