California EHV-1: One New Case Confirmed
The new Orange County case brings the California total to 16 positive horses.
The new Orange County case brings the California total to 16 positive horses.
The CDFA does not believe the two situations are related and is investigating both outbreaks.

Owners or caretakers should be prepared for emergencies when mares are scheduled to foal.
Necropsy results indicate that it is highly unlikely one horse’s recumbency was due to the EHV-1 infection.
The multistate outbreak in 2011 illustrated the need for infectious disease control in the equine community.
One horse was euthanized after testing positive for the neurologic form of the virus in early January.
Two more cases of equine herpesvirus-1 (EHV-1) have been confirmed today, with the two horses displaying
An additional horse was confirmed EHV-1-positive and another was euthanized in connection with the outbreak.
The goal is to identify factors associated with the outbreak in order to prevent and control outbreaks.

Only one of the eight horses has displayed neurologic signs consistent with EHV-1 thus far.

Past studies showed that vaccines were only sometimes effective in preventing development of viremia.
All affected horses are quarantined on their home property and are receiving veterinary care.
It’s never too late to implement biosecurity protocol to help protect horses from potentially fatal diseases.

Veteran broodmares are at risk of placentitis, partly due to anatomic changes from previous foalings.
The horses are currently quarantined on their home premises and are receiving veterinary treatment.
The admission and discharge restrictions were put in place after an EHV-1-positive mare was hospitalized.
Stay on top of the most recent Horse Health news with
"*" indicates required fields