Vaccine 

 Foal/wean

Yearling

Performance

Pleasure

Broodmare

Notes

Tetanus

1^st dose – 3-4 mos.

2^nd dose – 4-5 mo.

Annual

An nual

Annual

Annual, 4-6 wks. Before foaling.

Given in combination with EEE, WEE, influenza or PHF.

Encephalomyelitis

(EEE, WEE)

1^st dose 3-4 mo.
2^nd dose 4-5 mo.

Annual, spring

Annual, spring

Annual, spring

Annual, 4-6 wks. Before foaling.

Given in combination with tetanus, influenza or PHF.

Influenza

1^st dose 3-6 mo 2^nd dose 4-7 mo 3^rd dose 5-8 mo Repeat at 3 mo intervals

Every 3 mo

Every 3 mo

Biannually with added boosters prior to likely exposure

Biannually with one booster 4-6 wks before foaling

At least 3 doses for primary immunization of foals.  Use combination vaccines for spring boosters and before foaling.

Rhinopneumonitis

1^st dose 2-3 mo 2^nd dose 3-4 mo 3^rd dose 4-5 mo Repeat at 3 mo intervals

Every 3 mo

Every 3 mo

Optional or biannually

5^th, 7^th, 9^th mo of gestation

If vaccination is started before 3 months of age, a 3 dose series is necessary. Vaccination of mares before breeding and 4-6 wk before foaling with EHV-1 & EHV-4 is also recommended.

Rabies

1^st dose 3-4 mo 2^nd dose 4-5 mo

Annual

Annual

Annual

Annual, before breeding

Recommended in high-risk areas.

Strangles

1^st dose 8-12 wk 2^nd dose 11-15 wk 3^rd dose 14-18 wk 4^th dose weaning (6-8) mo.

Biannual

Optional, biannual if risk high

Optional, biannual if risk high

Biannual with 1 dose before 4-6 wk foaling

Vaccines containing M-protein extract are preferred.  Use when high-risk conditions exist.

Potomac Horse Fever (PHF)

1^st dose 3-4 mo 2^nd dose 4-5 mo

Biannual

Biannual

Biannual

Biannual with 1 dose 4-6 wk before foaling

Vaccination recommended in high risk areas.  Foals from vaccinated mares should be vaccinated monthly intervals up to 6 mo of age.