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H.E. Vac

This page contains information on H.E. Vac for veterinary use.
The information provided typically includes the following:
  • H.E. Vac Indications
  • Warnings and cautions for H.E. Vac
  • Direction and dosage information for H.E. Vac

H.E. Vac

This treatment applies to the following species:
Company: Arko


Hemorrhagic Enteritis Vaccine

Live Virus

1,000 and 5,000 dose vials

H.E. Vac Indications

This product has been shown to be effective for the vaccination of healthy turkeys 30 days or older against hemorrhagic enteritis. The duration of immunity has not been determined for this product. For more information regarding efficacy and safety, see

Contact a veterinarian for more information on vaccination frequency.

Administration And Dosage

The vaccine should be administered in the drinking water at thirty days of age or older. Birds vaccinated at a younger age may not develop adequate immunity due to maternal antibody.

1) Medications and disinfecting products in the drinking water are not compatible with the H.E. Vaccine. Discontinue their use at least 24 hours before vaccinating and do not resume their use for 24 hours after vaccination.

2) Do not use chlorinated water for vaccination. Scrub and clean all waterers before vaccination with non-chlorinated water.

3) Flush the water lines with 454 gms (one pound) of powdered milk per 378.5 liters (100 gallons) of water prior to vaccinating.

4) Let thaw and shake each vial of vaccine before removing the aluminum seal.

5) The vaccine is to be administered to 30 day old turkeys based on 1,000 doses of vaccine for every 1,000 birds. Using the information that 4 week old turkeys drink 151.4 liters (40 gallons) of water per 1000 birds per day, a stock solution would be prepared as follows. One thousand doses of vaccine would go to each 75.7 liters (20 gallons) of drinking water. For a proportioner that delivers 29.58 ml per 3.78 liters (1 oz. per gallon) or 3.78 liters per 484.5 liters (1 gallon per 128 gallons), 6,000 doses of vaccine would be added to each gallon of stock solution. This should provide vaccine to the flock for about 12 hours which should allow for adequate vaccine coverage.

6) Never administer less than one dose of vaccine per bird.

7) Always distribute the vaccine evenly among clean waterers. Do not place the waterers in direct sunlight. Resume regular water administration only after all the vaccine water has been consumed.


Store this vaccine at not over 24°F (-4°C) for long term storage. May be stored for up to 30 days at not over 45°F (7°C). Do not vaccinate within 21 days before slaughter. Inactivate unused contents before disposal. Clean any spills with disinfectants. In case of human exposure, contact a physician. Do not mix with other products, except as specified on the label. Contains penicillin, streptomycin and amphotericin B as preservatives.

ARKO Laboratories Ltd., Jewell, Iowa 50130


US Veterinary License No: 337

PCN 17E1.20

CPN: 1123004.5

P.O. BOX 400, 1336 MAIN STREET, JEWELL, IA, 50130
Telephone:   515-827-5648
Toll-Free:   800-714-2756
Fax:   515-827-5648
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