Vaccination Protocol for Equine Viral Arteritis (EVA)

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Vaccination Protocol for Equine Viral Arteritis (EVA)

1. Vaccine may only be purchased with permission of State Veterinarian

2. Prior to vaccination, horse must be bled to document EVA serological status.

3. Horse must be isolated for 21 days post vaccination from sero-negative or unknown status horses, especially pregnant mares.

4. Administer according to label


Isolation Protocol

In Barn - have at least 2 stalls separating the vaccinated horse from other non-vaccinated or unknown status horses.

Follow appropriate biosecurity measures to prevent spread of EVA virus to other horses

  • Feed/water/clean that stall last; do not go from that stall to negative stall.
  • Disinfect all equipment that comes into contact with isolated horse; halters, lead ropes, shovels wheelbarrows etc.
  • Dump manure/shavings etc. from isolation stall in area where other horses can not come into contact.
  • The first week post-vaccination it is especially crucial to follow these guidelin

Pasture Isolation - must not have direct or across the fence contact with negative or unknown status horses.

Follow appropriate biosecurity measures to prevent spread of EVA virus to other horses

Feed/water/clean paddock last; do not go from that paddock to negative paddock.

Disinfect all equipment that comes into contact with isolated horse; halters, lead ropes, shovels wheelbarrows etc.

Dump manure/shavings etc. from isolation stall in area where other horses can not come into contact.

The first week post-vaccination it is especially crucial to follow these guidelines