On April 10, during daily surveillance and monitoring of temperatures, a 20-year-old vaccinated gelding on the premises quarantined for equine herpesvirus in Johnson County, Wyoming, spiked a fever of 102.5 for a duration of less than 12 hours. Nasal swabs and blood were submitted on April 11, with positive PCR results on blood only for wild type EHV-1. The horse had no other clinical signs of disease. The horse was isolated and the quarantine on the facility extended.
There are 20 other exposed horses on the premises.
Information for this report was provided by the Wyoming State Veterinarian’s office through the Equine Disease Communication Center.