Use the disease overview below to discuss your horse’s vaccination needs with your veterinarian and download a rebate for up to $8 back on your vaccines and dewormer from Zoetis.

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Annual vaccination against the following diseases is strongly recommended for all horses.

Eastern and western equine encephalomyelitis are viral diseases that attack your horse’s nervous system. Spread by mosquitos, the infection may lead to fever, depression, head pressing, teeth grinding, circling, blindness, seizures and death.

Rabies is caused by a virus in the saliva of infected animals, usually transmitted through a bite. The virus travels up the nerves to the brain, where the disease progresses rapidly and is always fatal in horses. Rabies can be transmitted from horses to humans.
Tetanus is a potentially fatal disease caused by bacteria found in the intestinal tract and feces of horses and other animals, and it can be abundant in the soil. Horses can become infected through puncture wounds, open lacerations and exposed tissues.

West Nile is a viral disease that causes inflammation of the central nervous system. Transmitted by mosquitos, the infection can lead to fever, lethargy, weakness, blindness, tremors, difficulty walking, seizures and death.


Vaccination against the following diseases is recommended for horses with risk factors dependent on age, geography, housing or role.

Rhinopneumonitis caused by equine herpesvirus, affects the respiratory tract and may lead to fever, nasal discharge, lethargy, cough and neonatal death. The virus can also result in outbreaks of abortion and neurological disease.

Equine influenza is caused by a highly contagious virus and can spread rapidly through groups of horses, such as at horse shows and events. The virus affects the respiratory tract, leading to cough, fever and nasal discharge.
Leptospirosis is a bacterial disease that can lead to fever, depression, loss of appetite, blindness, abortion and kidney failure. Horses can become exposed via contact with urine from infected wildlife, cattle and dogs or contact with standing water.

Strangles is a highly contagious bacterial disease that typically targets weanlings and yearlings. Signs include fever, depression, nasal discharge, cough, swollen lymph nodes and reluctance to swallow.