The Equivac HeV vaccine is the single most important step in protecting your horse and your family against the deadly Hendra Virus. Newcastle Equine Centre strongly recommends that all horses are vaccinated. The vaccine must be given by a veterinarian, involves 2 initial injections, 3-6 weeks apart and the horse must be microchipped. The horse will then require 6 monthly boosters. We are hoping this interval will be extended to 12 monthly boosters, however this research is still underway.