black horse
horse

Ainsdale

Ainsdale

Ainsdale
mare and foal
rolling

Vaccinations

Influenza and Tetanus vaccinations are recommended; other vaccinations available are Equine Herpes Virus (EHV-1 and EHV-4) and Strangles on request.

Equine Influenza and Tetanus Vaccination Protocol:

  • 1st vaccination – after weaning from 6 months of age
  • 2nd vaccination – 4-6 weeks later
  • 3rd vaccination – 5-7 months later, then annually
  • (if competing under FEI rules, flu booster required every 6 months (+/- 21 days))

Tetanus Vaccination Protocol:

  • 1st vaccination - after weaning from 6 months of age
  • 2nd vaccination - 4-6 weeks later
  • 3rd vaccination -  within 2 years, then continue every 2 years

Equine Herpes Vaccination Protocol:

It is recommended that the following horses be revaccinated at 6-month intervals:

  • Horses less than 5 years of age.
  • Horses on breeding farms or in contact with pregnant mares.
  • Horses housed at facilities with frequent equine movement on and off the premises, thus resulting in an increased risk of exposure.
  • Performance or show horses in high-risk areas, such as racetracks. More frequent vaccination may be required as a criterion for entry to the facility.

Adult, non-breeding horses unvaccinated or having unknown vaccination history:  Administer a primary series of 3 doses of inactivated EHV-1/EHV-4 vaccine or modified-live EHV-1 vaccine.

  • 1st vaccination - from 5 months of age
  • 2nd vaccination - 4-6 weeks later
  • 3rd vaccination -  every 6 months there after

Pregnant mares: Vaccinate during the fifth, seventh, and ninth months of gestation using an inactivated EHV-1 vaccine licensed for reduction in abortion rates following herpes virus infection.

Vaccination of mares with an inactivated EHV-1/EHV-4 vaccine 4 to 6 weeks before foaling is commonly practiced to enhance concentrations of colostral immunoglobulins for transfer to the foal. Maternal antibody passively transferred to foals from vaccinated mares may decrease the incidence of respiratory disease in foals, but disease can still occur in those foals and infection is common.

Barren mares at breeding facilities: Vaccinate before the start of the breeding season and thereafter based on risk of exposure.

Stallions and teasers: Vaccinate before the start of the breeding season and thereafter based on risk of exposure.

Foals: Administer a primary series of 3 doses of inactivated EHV-1/EHV-4 vaccine or modified-live EHV-1 vaccine, beginning at 4 to 6 months of age and with a 4 to 6 week interval between the first and second doses. Administer the third dose at 10 to 12 months of age.

Immunity following vaccination appears to be short-lived and it is recommended that foals and young horses be revaccinated at 6-month intervals.

Strangles Vaccination Protocol:

Basic Vaccination Schedule:  two submucosal vaccinations 4 weeks apart.

High Risk Situations: revaccinated with a single dose every 3 months.

Medium Risk Situation: revaccination every 6 months rather than every 3 months can be considered. If horses are revaccinated every 6 months, a prompt booster with a single dose should be given if an outbreak of strangles occurs more than 3 months after the last booster.

There is generally no need to vaccinate horses in lower risk situations.

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