If ECoV tests are positive and a horse is showing classic clinical signs of the disease, including colitis, fever, and lethargy, vets can safely assume he has equine coronavirus disease without further testing.
Thirty-nine additional horses have been placed under official quarantine after their potential exposure to equine herpesvirus.
Maricopa County contains four of the state’s five affected premises.
Six additional Fauquier County horses have been exposed.
The confirmed vesicular stomatitis cases mark the state’s index cases for 2020.
Additionally, authorities have released quarantined premises in all New Mexico and all but two Texas counties.
Five of the state’s counties now have VSV-quarantined premises.
Officials state there’s no link between the case at this facility and those at Woodbine Racetrack in Toronto or the Dufferin County farm that also recently experienced EHM cases.
The Dufferin County farm outbreak is linked to a Toronto racetrack outbreak.
No new cases were confirmed in New Mexico or Texas, the other two states affected so far in 2020.
The USDA has confirmed vesicular stomatitis cases on additional affected premises in Arizona, New Mexico, and Texas.
Testing at the Canadian horse racing track following two confirmed cases revealed additional equine herpesvirus-1 positives.
Horses that tested positive at the affected King County facility are now clear of the virus.
Zapata County now contains two confirmed positive premises.
One additional new suspect premises with vesicular stomatitis virus was also reported in the state.
The Alcohol and Gaming Commission of Ontario has enacted strict control measures.
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