Study on the etiologic role of bovine respiratory ...
|Title||Study on the etiologic role of bovine respiratory syncytial virus in pneumonia of dairy calves|
|Author(s)||J. C. Baker, R. E. Werdin, T. R. Ames, R. J. Frederick Markham, V. L. Larson|
|Journal||Journal of the American Veterinary Medical Association|
|Abstract||Bovine respiratory syncytial virus (BRSV) was the viral agent most commonly identified in 14 epizootics of pneumonia in dairy calves. A microtiter serum-virus neutralization test proved to be the best means of identifying involvement of BRSV; seroconversion (fourfold or greater rise in titer) was demonstrated in 10 of the 14 epizootics. Only limited involvement of bovine viral diarrhea virus, infectious bovine rhinotracheitis virus, parainfluenza 3 virus, and bovine adenovirus type 3 was recognized. Pasteurella multocida was isolated in 12 of 14 epizootics, and Pasteurella haemolytica in 4 of 14 epizootics. Mycoplasmal and ureaplasmal agents were isolated in all 14 epizootics.|
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