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Experimental infection of bulls and cows with bluetongue virus serotype 20
Author(s) -
PARSONSON I M,
DELLAPORTA A J,
McPHEE D A,
CYBINSKI D H,
SQUIRE K R E,
UREN M F
Publication year - 1987
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1987.tb06048.x
Subject(s) - serotype , virus , inoculation , antibody , biology , virology , insemination , veterinary medicine , medicine , immunology , pregnancy , genetics
SUMMARY Bluetongue virus serotype 20 (BTV20) was inoculated intradermal and subcutaneously in 4 bulls and by the intrauterine route in 8 nulliparous cows after insemination at oestrus. Viraemia was detected intermittently between 8 and 21 days after inoculation. Virus was isolated from tissue samples of 2 cows and a bull after slaughter at 14 days and from one bull at 28 days. Group reactive and type specific antibodies to BTV20 were demonstrated from 17 to 27 days after infection. No antibodies were detected in the animals slaughtered at 14 days. No clinical signs of disease were seen during the experiment and no gross or histopathological changes referable to BTV20 infection were observed post‐mortem. Because of the viraemia and the production of detectable serum antibodies, gametes from these cattle would be excluded from export.