Reactivation and shedding of bovine herpesvirus 1 following Dictyocaulus viviparus infection.
Three groups of 4 bullocks which had recovered from infectious bovine rhinotracheitis (IBR) were infected 5 months later with Dictyocaulus viviparus larvae. Bovine herpesvirus 1 was recovered from days 7 to 21 post-infection from the nasal secretions of the group given 50 larvae per kilogram and on one occasion from those given 1000 larvae per animal (less than 5 L3 per kg). Virus was not isolated from the animals given 1000 irradiated larvae. Typical clinical signs and lesions of IBR developed in the group from which the virus was isolated regularly.
D000818:Animals; D002417:Cattle; D004022:Dictyocaulus Infections / Q000276:immunology*; D007242:Herpesvirus 1, Bovine / Q000254:growth & development*; D007241:Infectious Bovine Rhinotracheitis / Q000276:immunology* / Q000382:microbiology; D008297:Male; D014775:Virus Activation