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  • Title: Group A rotavirus excretion patterns in naturally infected pigs.
    Author: Fu ZF, Hampson DJ.
    Journal: Res Vet Sci; 1987 Nov; 43(3):297-300. PubMed ID: 2832911.
    Abstract:
    Cross-sectional and cohort studies were conducted in a piggery to investigate the excretion pattern of group A rotavirus in pigs. The cross-sectional survey revealed that 47 (9 per cent) of 521 pigs sampled were excreting rotavirus in the faeces. No rotavirus antigen was detected in the faeces of pigs either less than one week or over two months old. The prevalence of infection increased with age over the sucking period, and was greatest at five weeks old. Diarrhoea was observed in only eight (17 per cent) of the pigs excreting rotavirus. Sixteen piglets from four litters were selected and faecal samples collected daily from each animal from birth to two months old. All the piglets excreted group A rotavirus and the range of ages at which they first became infected was between 13 and 39 days. The average duration of excretion in individual piglets was 7.4 days. Ten of 13 sucking piglets which excreted rotavirus developed diarrhoea soon after it was first detected.
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