Abstract
The influence of long distance transport on various viral infections was investigated serologically by examining 29 young racehorses for infection by respiratory agents including equine herpesvirus, equine adenovirus and equine rhinovirus, as well as coronavirus which has been suggested to be an etiological agent of diarrhea and febrile disease in horses. Serological evidence of infections by these viruses was not shown in any of the 18 febrile horses. However 4 of 11 nonfebrile horses which were loaded on the same vehicle as two horses which were seropositive for coronavirus, seroconverted after transportation.
