Lack of virus transmission from bovine viral diarrhoea virus infected calves to susceptible peers

None of 14 calves not previously exposed to BVDV became infected after being forced to have nose-to-nose contact with a group of 5 calves primarily infected with BVDV. These were 5 male calves primarily infected with a type I BVDV strain, after nose-to-nose contact with a persistently viraemic calf....

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Bibliographic Details
Published in:Acta veterinaria scandinavica 2000-01, Vol.41 (1), p.93-99
Main Authors: Niskanen, R. (SLU, Uppsala (Sweden)), Lindberg, A, Larsson, B, Alenius, S
Format: Article
Language:English
Subjects:
Animals
Antibodies, Viral - blood
Body Temperature
BOVIN
BOVINE DIARRHOEA PESTIVIRUS
Bovine Virus Diarrhea-Mucosal Disease - blood
Bovine Virus Diarrhea-Mucosal Disease - transmission
Bovine Virus Diarrhea-Mucosal Disease - virology
CATTLE
Diarrhea Viruses, Bovine Viral - isolation & purification
Diarrhea Viruses, Bovine Viral - pathogenicity
Disease Reservoirs - veterinary
DISEASE TRANSMISSION
Disease Transmission, Infectious - veterinary
Enzyme-Linked Immunosorbent Assay - veterinary
Female
GANADO BOVINO
Leukocyte Count - veterinary
Male
PATHOGENICITY
PATOGENICIDAD
PESTIVIRUS DE LA DIARREA BOVINA
PESTIVIRUS MALADIE DES MUQUEUSES
Platelet Count - veterinary
POUVOIR PATHOGENE
Review
Sweden
TRANSMISION DE ENFERMEDADES
TRANSMISSION DES MALADIES
Viremia - veterinary
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Summary:None of 14 calves not previously exposed to BVDV became infected after being forced to have nose-to-nose contact with a group of 5 calves primarily infected with BVDV. These were 5 male calves primarily infected with a type I BVDV strain, after nose-to-nose contact with a persistently viraemic calf. All 5 became infected and were clinically affected. They were slightly depressed and pyretic at 8-9 days post-infection, with a body temperature of up to 41.6 degrees C, but no medical treatment was required. Seroconversions to BVDV were detected in these calves at 14 to 21 days post-infection. The 14 healthy calves, proved to be free from BVD virus--as well as antibodies, were introduced 2 by 2 into the group of 5 primarily infected calves on days 4, 7, 14, 21, 28, 35 and 42 after the 5 calves had been in contact with the persistently BVDV-infected calf. Each pair of calves stayed within the primarily infected group for 2 days. None of these 14 calves seroconverted to BVDV.
ISSN:0044-605X
1751-0147
1751-0147
DOI:10.1186/BF03549659