When Should A Mare Be Vaccinated After Foaling?

When Should A Mare Be Vaccinated After Foaling? Pregnant mares should be vaccinated against equine herpesvirus-1 (EHV-1) at 5, 7 and 9 months of pregnancy to decrease the incidence of viral abortion. Can you vaccinate a nursing mare? Health Programs for the Foaling Mare Recommended vaccinations typically include tetanus toxoid, encephalomyelitis, West Nile Virus, Influenza,