Persistence of passively acquired antibodies to hemagglutinating encephalomyelitis virus in swine

Paul, P.S.; Mengeling, W.L.

American Journal of Veterinary Research 45(5): 932-934

1984


ISSN/ISBN: 0002-9645
PMID: 6732026
Document Number: 228424
The persistence of passively acquired antibodies to hemagglutinating encephalomyelitis virus (HEV) was determined in 4 pigs in each of the litters of 10 sows. At time of delivery by the sows, the colostrum and serum samples (from the 10 sows) had hemagglutination-inhibiting antibodies to HEV. All of the pigs also had hemagglutination-inhibiting antibodies to HEV at 2 days of age. The level of circulating antibodies to HEV decreased at a nonlinear rate and persisted for about 4 to 18 (mean 10.5) weeks in the circulation of pigs. All 40 pigs were seronegative at 20 weeks of age.

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