West Nile Virus Vaccine

Recombitek rWNV is a West Nile Virus vaccine. It is administered via intramuscular injection. This product does not treat or cure West Nile Virus; it is a vaccine to prevent initial infection.

Recombitek rWNV protects horses against West Nile Virus by inoculation. This virus, transmitted via bites from mosquitoes that carry it, is potentially fatal and causes significant suffering in infected animals. Recombitek rWNV is safe for use in horses 2 to 4 months of age and older.

Benefits of Recombitek rWNV:

  • Vaccinates against West Nile Virus
  • Prevents the significant suffering associated with this disease when it interferes with the central nervous system and triggers inflammation in the brain
  • Protects during every mosquito season with annual boosters
  • Easily administered with intramuscular injections
  • Safe for use in foals as young as 2 to 4 months old
  • Conveniently sold in packages of five 5-dose vials and 10 single-dose vials

Read label instructions and warnings before use.

For use by or under the close supervision of a veterinarian only.


  1. Reconstitute vaccine with enclosed sterile diluent right before use.
  2. Shake well.
  3. Administer 1 mL aseptically with an intramuscular injection.
  4. Administer a second 1 mL dose in the same manner 4 to 6 weeks later.

Frequency of Use:

Initial inoculation requires two doses given 4 to 6 weeks apart. Horses are fully protected against West Nile Virus 14 days after the second administration. Annual revaccination at an appropriate time prior to the onset of mosquito season is recommended.


Keep out of reach of children and animals.

Refrigerate Recombitek rWNV between 35 and 45 degrees F. Do not freeze.

Use immediately after rehydration.

Burn container and unused contents.

It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.

Recombitek rWNV contains a lyophilized recombinant canarypox vectored West Nile Virus vaccine. With such exposure, a horse's immune system is trained to identify and eradicate the virus before it can grow and produce illness.


Keep Recombitek rWNV out of reach of children and animals. Do not use or store in or near open flame or heat. Keep refrigerated.

Recombitek rWNV is only intended for use in horses. Do not administer to other species. Not for use in humans.

For intramuscular injection only. Do not administer via any other route.

CAUTION: Allergic reactions are possible and appropriate treatment of symptoms is indicated.

Do not store reconstituted vaccine. Use immediately upon rehydration.

Horses are not successfully immunized against West Nile Virus until 14 days after the second dose. Annual boosters are advised.

Not for use within 21 days of slaughter.

Dispose of containers and unused product by incineration.

Warranty and Manufacturer Information:

RECOMBITEK is a registered trademark of MERIAL.

Manufactured By MERIAL, INC., Athens, GA 30601 USA

U.S. Vet. Lic. No. 298

1-888-Merial-1 (1-888-637-4251)

NAC No.: 11111010

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Recombitek rWNV EWT Vaccine 10 x 1 Dose
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Recombitek West Nile Virus Vaccine, 10 x 1 Dose Vials
Retail: $444.99
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