Current Health Issues


Updated Vaccination Guidelines for Horses in North America (2011)
Click here for the most current vaccination guidelines (2011) for adult horses, yearlings, weanlings and foals.

Contagious Equine Metritis
CEM Treatment presentation

Equine Herpesvirus-1
(click here for exclusive section on EHV-1)

Information on EHV-1 will continue to be posted on this site to provide awareness to California horse owners regarding the infection.

For up-to-date EHV-1 information and additional reading:

White Paper on Equine Herpes Myeloencephalopathy (EHM) prepared by the Center for Equine Health and the William R. Pritchard Veterinary Medical Teaching Hospital, School of Veterinary Medicine, University of California, Davis, 26 May 2011.

Phase II Recommendations for Horse Show/Event Managers Regarding EHV-1 Biosecurity Procedures issued by CDFA veterinarians and the faculty of the School of Veterinary Medicine, University of California, Davis, June 8, 2011.

How to Set Up a Disease Isolation Unit at a Farm or Horse Show, extracted from The Horse Report issue on Equine Herpesvirus-1.

For information on biosecurity measures and other practical information, see The Horse Report issue on Equine Herpesvirus-1.

A scientific review of recent developments in diagnostic procedures, treatment modalities, preventive measures and biosecurity protocols, published in 2009.

More detailed information on EHV-1 (general information, handling sick horses, diagnostic testing, control measures, and the status of vaccinations) is available at

Information on EPM Testing
Information on the utility of two immunological tests for antemortem diagnosis of EPM was published in the Journal of Veterinary Internal Medicine and is available here as a pdf.


West Nile Virus
West Nile Virus (WNV) was a serious problem in California in 2007. The Center for Equine Health would like to remind horse owners to remain vigilant about keeping their horses' vaccinations current and to follow recommendations to prevent the spread of this mosquito-borne disease.

Center for Equine Health, School of Veterinary Medicine, UC Davis, Tel (530) 752-6433