Horse Vaccination Chart| Disease/Vaccine | Foals & Weanlings | Yearlings | Performance/Pleasure horse | Broodmares |
| Equine Encephalomyelitis, Eastern and Western (EEE, WEE) |
From non-vaccinated mare: First dose: 3-4 months Second dose: 4-5 months Third dose: 5-6 months From vaccinated mare: First dose: 6 months Second dose: 7 months Third dose: 8 months. |
Annual; Spring | Annual; Spring. Booster in fall if high risk | For prevoiusly vaccinated mare: Month 9 of gestation. For non-vaccinated mare or unknown history: Month 1, 2 and 10 of gestation. |
| West Nile Virus (WNV) | First dose: 3-4 months Second dose: 1 month later (plus 3rd dose at 6 months in areas at risk) |
Annual booster, prior to expected risk. Vaccinate semi-annually or more frequently (every 4 months), depending on risk. | Annual booster, prior to expected risk. Vaccinate semi-annually or more frequently (every 4 months), depending on risk. | For previously vaccinated mare:Month 9 of gestation. For non-vaccinated or unknown history: Month 1, 2 and 10 of gestation. |
| Rabies | >6 months | Annual | Annual | Month 9 of gestation |
| Tetanus | From non-vaccinated mare: First dose: 3-4 months Second dose: 4-5 months From vaccinated mare: First dose: 6 months Second dose: 7 months Third dose: 8-9 months |
Annual | Annual | For previously vaccinated mare:Month 9 of gestation. For non-vaccinated mare or unknown history: month 2 of gestation and booster at month 10. |
| Influenza (flu) | Inactivated injectable: From non-vaccinated mare: First dose: 6 months Second dose: 7 months Third dose: 8 months, then at 3-month intervals. From vaccinated mare: First dose: 9 months Second dose: 10 months Third dose: 11-12 months, then at 3-month intervals.Intranasal modified live virus: First dose: 11 months, or as your veterinarian recommends. |
Inactivated: Every 3-4 months. Modified Live intranasal: Every 6 months. | Inactivated: Every 6 months or boosters prior to exposure. Modified live intranasal: Every 6 months. | Inactivated IM For previously vaccinated mare: given at month 10 of gestation. For non-vaccinated mare or unknown history: Month 7 of gestation and booster at month 9 |
| Rhinopneumonitis (EHV-1, EHV-4) | First dose: 4-6 months Second dose: 5-7 months Third dose: 6-8 months, then at 3-month intervals. |
Booster every 3 to 4 months up to annually | Performance horses: Booster every 3-4 months up to
annually. Pleasure horses: Optional: semi-annual if elected. |
Inactivated vaccine: For previosly vaccinated mare: month 5, 7 and 9 of gestation. For non-vaccinated or unknown history: Month 2,7 and 9. |
| Strangles | Intranasal: First dose: 6-9 months Second dose: 3 weeks later |
Semi-annual | Optional depending on risk assessment | N/A |
| Potomac Horse Fever | First dose: 5-6 months Second dose: 6-7 months |
Semi-annual | Semi-annual | For previously vaccinated mare:Month 10 of gestation. For non-vaccinated or unknown history: Month 9 & 10. |
