Isolation of Bovine Herpesvirus (infectious Bovine Rhinotracheltis Virus) and Observations on Primary Recurrent and Contact Infection in Cattle in Kenya

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Date
1986
Authors
WAFULA,J.S.
MUSHI,E.Z.
IRERI,R.G.
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Abstract
Bovine herpesvirus I was isolated from the respiratory tract of a clinically normal steer. Experimental inoculation of eight calves with the virus either by the intranasal, intravaginal, Intraocular or intravenous routes resulted in varying clinical syndromes. A mild respiratory disease developed in six of the eight infected cattle while severe vaginal and ocular signs occurred only in those animals infected by the genital and ocular routes respectively. Virus was recovered from seven of the eight animals either from vaginal, ocular or nasal secretions 1-11 days after infection. Dexamethasone treatment of intranasally and intravaginally inoculated calves 4 months later resulted in virus recrudescence. Clinical changes and virus shedding in the recurrent infection were confined to the organs of primary virus inoculation. Calves kept in contact with dexamethasone-treated cattle reacted with mild respiratory disease.
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Tropical Animal Health And Production, 34, p. 9-14
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