A 3-year-old mare in Polk County, Wisconsin, tested positive for equine influenza, equine herpesvirus-1 (EHV-1), and equine herpesvirus-4 (EHV-4) on May 28. The mare showed symptoms of fever and cough on May 25 and is currently under quarantine.
EDCC Health Watch is a program by Equine Network that utilizes information from the Equine Disease Communication Center (EDCC) to create and distribute verified equine disease reports. The EDCC is a nonprofit organization supported by industry donations to provide open access to infectious disease information.
Understanding EHV
Equine herpesvirus (EHV) is highly contagious among horses and can lead to respiratory diseases, abortion in broodmares, and Equine Herpes Myeloencephalopathy (EHM).
EHV-1 infection in horses can manifest as fever, cough, decreased appetite, depression, and nasal discharge. Pregnant mares may not show signs before abortion, which typically occurs late in gestation. EHM presents with fever, respiratory infection signs, and neurological symptoms like incoordination and weakness.
Herpesvirus spreads through close contact, sharing contaminated equipment, or contact with infected individuals. Regular biosecurity measures are crucial to prevent disease transmission.
EHV-1 vaccines may reduce viral shedding but do not protect against the neurological form. Emphasizing biosecurity practices is key to controlling disease spread.
Insights on Equine Influenza
Equine influenza is a highly contagious respiratory disease affecting horses, ponies, and other equids. It spreads through saliva, respiratory secretions, and contact with contaminated items.
Symptoms include fever, cough, depression, weakness, nasal discharge, and enlarged lymph nodes. Monitoring your horse’s health and vaccination are crucial preventive measures.
Vaccination is essential to protect horses from equine influenza. Biosecurity protocols, such as quarantine for new arrivals and disinfection practices, help reduce infection risks.