We recommend that the groups of horses listed below are vaccinated with a primary course (2 vaccines) and thereafter vaccination should continue as follows:
Non-pregnant females and males
Re-vaccinate against EHV-1 at 6-month intervals.
This protocol is recommended for:
- Horses >6 months and <5 years of age
- Horses that may come into contact with pregnant mares
- Horses housed at facilities with frequent movement of horses on and off the premises
- Horses which frequently attend gatherings where horses mingle in close proximity
Pregnant mares
Re-vaccinate against EHV-1 at 6-monthly intervals and in addition give vaccines at 5, 7 and 9 months of gestation.
Vaccines for EHV 1 and 4 can be given at the same time as those for equine influenza and tetanus. There is no clear evidence of harm or benefit associated with combining EHV vaccines with other vaccines. Presently available vaccines reduce clinical signs due to infection with EHV1 and 4 and reduce abortion caused by EHV1 infection. Currently there is not clear evidence of benefit or harm when used in populations exposed to high risk of neurological EHV.