(NY) Equine Coronavirus was detected by PCR on a fecal sample from an adult horse with a history of a high fever and one swollen leg. This horse tested negative for Potomac Horse Fever (Neorickettsia risticii) and Anaplasma phagocytophilum via PCR tests performed on EDTA whole blood samples taken the same day as the fecal sample. This horse was a new addition to the farm about 30 days prior to the onset of clinical signs.
Update: Subsequent testing one week later on 16 other horses in the barn indicate that 3 other horses are shedding Coronavirus. They are exhibiting diarrhea also.