Reactivation of infectious bovine rhinotracheitis virus by transport.
Transport was studied as a cause of reactivation of infectious bovine rhinotracheitis virus (Bovine herpesvirus-1; BHV-1) in heifers vaccinated 2-6 months before transport, using a double dose of the thermosensitive (ts) vaccine strain (Tracherine). Eight out of 19 animals showed ts strain re-excretion over a period of 1-3 days, beginning, in 5 out of the 8 heifers, the day after transport. In 14 other heifers, only sera were examined by sero-neutralisation: only 1 out of these 14 animals showed a rise in BHV-1 neutralising antibodies. Transport can therefore be considered as a stimulus of BHV-1 reactivation.
D000818:Animals; D000914:Antibodies, Viral / Q000032:analysis; D002417:Cattle; D007242:Herpesvirus 1, Bovine / Q000254:growth & development* / Q000276:immunology; D007241:Infectious Bovine Rhinotracheitis / Q000276:immunology / Q000382:microbiology*; D009500:Neutralization Tests; D013312:Stress, Physiological / Q000382:microbiology; D013997:Time Factors; D014186:Transportation; D014765:Viral Vaccines / Q000276:immunology; D014779:Virus Replication
D000914:Antibodies, Viral; D014765:Viral Vaccines