EHV-1 Information

News and information about the latest outbreaks and cases of equine herpesvirus-1.

AQHA Ranching photoIn the News

Stay abreast of the latest outbreaks and cases of neurological strains of equine herpesvirus-1 across the nation.

  • April 2, 2014 – The Iowa Department of Agriculture confirmed that a single case of equine herpesvirus type-1 was recently discovered in Marion, Iowa.
  • April 1, 2014 – the Colorado state veterinarian’s office was notified by the Colorado State University Diagnostic Laboratory that a Larimer County horse tested positive for EHV-1.
  • April 1, 2014 – AQHA shows and special events in Minnesota are cancelled and rescheduled due to an equine herpesvirus type-1 outbreak in the Upper Midwest.
  • April 1, 2014 – Equine herpesvirus type-1 has been identified in several horses in Minnesota and Wisconsin.
  • March 11, 2014 – One horse has died and four others in Lane County test positive for the neurological form of equine herpevirus type-1.
  • October 23, 2013 – Neurologic equine herpesvirus type-1 has been reported at two premises in northwestern Wyoming.
  • April 17, 2013 – A Nevada horse tests positive for equine herpesvirus type-1.
  • April 9, 2013 – A New Jersey horse is euthanized after she tests positive for equine herpesvirus type-1 and progresses to the infectious neurologic strain.
  • March 25, 2013 – Another Montana horse is diagnosed with the neurological form of equine herpesvirus type-1.
  • March 8, 2013 – More EHV-1 infected horses in California, Tennessee, Utah and Illinois add to the tally in the United States and Canada.
  • February 28, 2013 – Horses across the United States and Canada test positive for equine herpesvirus-1.

Journal Exclusives

To combat EHV-1 and equine herpesvirus myeloencephalopathy, feel free use to use these exclusive articles brought to you by The American Quarter Horse Journal.

  • Equine Herpesvirus and Equine Herpesvirus Myeloencephalopathy: Protect your horse from the risks of EHV-1 with these tips from AQHA Corporate Partner Pfizer Animal Health.
  • The Facts on EHV-1: Recognize the signs of equine herpesvirus-1 and learn how to protect your horse from the risks of the virus.
  • Balance Showing and EHV-1: Competitors can strike a balance between protecting their horses and continuing to travel the show circuit.
  • Showing and the EHV-1 Outbreak: There are several things that horse owners who hope to travel and compete this summer should keep in mind to protect their horses from EHV-1.
  • Close Call: AQHA Professional Horseman Al Dunning recognized the symptoms of equine herpesvirus and was able to save his three horses.
  • EHV-1 Testing: AQHA Professional Horseman Al Dunning weighs in on his experience with EHV-1 testing, and Dr. Thomas R. Lenz suggests alternatives to testing.
  • Travel Safely: Good biosecurity both at home and on the road will help keep your horses healthy.
  • Strike a Balance with EHV-1: Learn how to strike a balance between showing and protecting your herd against equine herpesvirus myeloencephalopathy with tips from Dr. Tom Lenz.
  • Core vs. Risk Vaccinations: Help ensure that your horses are adequately protected against disease exposure risks in your region.

Additional Resources

Please see the following links for additional information on sound biosecurity practices, transmission risks and disease mitigation strategies.