Join Date: Jan 2012
Location: Calgary, AB, Canada
Three way (Tetanus, Eastern and Western Encephalitis) is considered the "basic" in most barns. Those make sense for sure.
Additional options are Equine Influenza and Equine Herpesvirus-1 (-> makes it 5-way). If you don't want to breed your mare, I personally would not vaccinate EHV-1. Herpes is a very complex virus and most adult horses (>80%) are infected. Vaccines against pretty much all Herpesviruses are notoriously ineffective. Vaccination does not prevent from infection, but only reduces some clinical signs (Rhino, and even that is arguable). It does absolutely nothing for the CNS form of EHV-1.
Influenza is a matter of personal preference. As with all Influenzaviruses, the vaccine is very strain specific, so your horse can still get infected with Influenza of a different strain. Also, immunity is really short lived in horses, so ideally it would have to be re-vaccinated ever 3-6 months. If my horse had a lot of contact with others, I would consider it, but if not I wouldn't bother.
Additional options are West Nile and Strangles. West Nile is mosquito transmitted and has been endemic to North America since 1999, so unless you live in the Arctic, it makes sense to vaccinate. The vaccine is pretty good.
I would vaccinate for Strangles in a boarding type situation with lots of horse movement.
Potomac Horse fever vaccines are pretty useless (weak immunity, not effective against all strains), so I wouldn't vaccinate that.
Rabies vaccination is possible, but not standard. I would consider it if the prevalence of Rabies is high in your region. I would discuss that with a vet for your region.
My horse (12 year old gelding, boarded, goes on trips to the mountains but not to shows) is vaccinated 3-way + WNV + Strangles.
Posted via Mobile Device