When herpesvirus is dormant, you don’t know which horse is a carrier or when the virus might again become contagious. A day prior to the start of the 53rd annual convention of the American Association of Equine Practitioners in 2007, a meeting was hosted by the C.L. Davis Foundation and the American Association of Veterinary Laboratory Diagnosticians on Equine Herpesviral Diseases.

The day-long seminar in 2007 on equine herpesviruses – specifically the neurologic form – started with an overview of herpesvirus infections in horses. Equine herpesviruses are found all over the world, and there are nine equine herpesviruses identified at this time. They can cause respiratory, reproductive, and neurologic problems in horses.