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Encevac T + WNV (10 Doses)

Item: 2023WN
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Shipping is $36.95 + a $6 surcharge for ice. Your order will ship via Express 1-2 day mail and will be packed in an insulated box with ice packs. Items that are required to ship this method will be listed in the item description. Orders placed after 2:00 PM EST (11:pp AM PST) may not end up being able to ship out the same day.

Restrictions: All foreign orders are ineligible. Free shipping is ineligible.

Note: Vaccine orders are only shipped out on Mon-Wed. due to Express service only being able to deliver during weekdays. We cannot be responsible for vaccine or other refrigerated orders that are delayed because no one is present at the time it is delivered.


Encevac® T + WNV Vaccine with Havlogen combines the 3-Way protection of Merck® Encevac® T with the added protection against West Nile. It aids in the prevention of: Eastern/Western Equine Encephalomyelitis (EEE/WEE), also known as Sleeping Sickness, Tetanus and West Nile.

  • Protects against West Nile + 2-way Sleeping Sickness + Tetanus)
  • Merck's exclusive adjuvant, Havlogen® which is made from a filtration technology so advanced that vaccinations are 98% reaction free in field trials

Encevac T + WNV is a registered trademark of Intervet Inc., d/b/a Merck Animal Health, a subsidiary of Merck & Co. Inc.

Useful Information

For primary immunization, aseptically inject 1 mL intramuscularly and repeat the dose in 3 to 4 weeks. Annual revaccination is recommended. A booster dose can be administered at more frequent intervals based upon individual horse or farm disease risk assessment or any time epidemic conditions exist or are reported. Foals nursing immune-dams should be vaccinated when maternal antibody levels will allow active immunization. Consult your veterinarian.

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