Serological reactions in sheep and cattle experimentally infected with three Australian isolates of bluetongue virus [test efficiency]
1989
Squire, K.R.E. (Commonwealth Scientific and Industrial Research Organization, Indooroopilly (Australia). Div. of Tropical Animal Science)
Antibody to bluetongue virus was first detected by the serum neutralisation test (SNT) and the agar gel diffusion precipitin test (AGD) 8 to 10 days after intravenous infection of sheep; both tests detected antibody in cattle by 10 days after detection of viraemia. AGD failed to detect antibody in 28 percent of sheep that had seroconverted in the SNT; a further 7 percent of sheep sera were negative to both tests 14 to 22 days post-infection. In cattle, extended prepatent periods for the beginning of viraemia were noted with intradermal, subcutaneous and intrauterine, as compared to intravenous, infection routes.
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