2016 ACVIM Forum Research Abstract Program

With the exception of transient and self-limiting changes in fecal character observed in 7 vaccinated and 1 control horse, no additional abnormal clinical findings were found in the study horses. Following the first and second vaccine administration, two and one horse, respectively, tested qPCR-positive for BCoV in nasal secretions 1 d post intra-nasal vaccination. No vaccinated horses tested qPCR positive for BCoV in feces following each vaccine administration. One of the two horses that shed BCoV seroconverted to BCoV after the first vaccine administration and an additional 2 vaccinated horses (oral and intra-rectal) seroconverted to BCoV after the second vaccine administration.