Skip to main content

Avian Encephalomyelitis Vaccine

This page contains information on Avian Encephalomyelitis Vaccine for veterinary use.
The information provided typically includes the following:
  • Avian Encephalomyelitis Vaccine Indications
  • Warnings and cautions for Avian Encephalomyelitis Vaccine
  • Direction and dosage information for Avian Encephalomyelitis Vaccine

Avian Encephalomyelitis Vaccine

This treatment applies to the following species:
Company: Hygieia

live virus


Avian Encephalomyelitis Vaccine is a chicken embryo propagated, freeze-dried, live virus vaccine for wing web administration in chickens.

Avian Encephalomyelitis Vaccine Indications For Use

The vaccine is recommended for vaccination of healthy chickens aged 8 weeks or older but at least 4 weeks prior to start of lay. When used as indicated, it will aid in preventing the clinical signs caused by the virulent field strains of avian encephalomyelitis virus.


The vaccine is administered through wing web route using a double needle applicator. In order to prepare the vaccine for wing web administration, tear off the aluminum seal from the vial containing the freeze dried virus. Lift off the rubber stopper. Remove the seal and stopper from the diluent bottle. Each diluent bottle contains 10 ml of diluent. Pour half of the diluent into the vial containing the freeze dried virus. Replace the rubber stopper and shake the vaccine vial. Pour the partly dissolved vaccine into the diluent bottle to mix with rest of the diluent. Replace the rubber stopper and shake vigorously until the vaccine is dissolved completely. The vaccine is now ready for use. For vaccination, hold the bird and spread the underside of one wing outward. Insert the double needle applicator into the vaccine bottle, wetting or charging both needles. Pierce the web of the exposed wing with the double needle applicator charged with vaccine. Insert the double needle applicator into the vaccine vial again and proceed to vaccinate the next bird. During vaccination avoid hitting large blood vessels, bones and the wing muscles with the double needle applicator. Do not inject in any other site except the exposed wing web.

Avian Encephalomyelitis Vaccine Caution

Do not spill or splatter the vaccine. Burn containers, unused vaccine and accessories prior to disposal. Do not over dilute the vaccine or otherwise extend the dosage. Store unopened vaccine vials at not over 45° F or 7° C. Do not vaccinate within 21 days of slaughter or 4 weeks prior to start of lay. The vaccinated chickens should not be placed on contaminated premises. All susceptible chickens on the same premises should be vaccinated at the same time. If this is not possible, then strict isolation and separate caretakers should be employed for non-vaccinated chickens. Efforts should be made to reduce stress conditions at the time of vaccine administration.


The vaccine is supplied in 10 x 1000 dose vials with diluent, product insert and wing web applicators.

Rehydrate with 10 ml of diluent. For wing web administration in chickens. For veterinary use only.


T: 530-661-1441

F: 530-661-1663


U.S. Veterinary License No. 407

CPN: 1506009.0

P.O. BOX 8300, WOODLAND, CA, 95776
Lab/Main Office:   530-661-1442 (telephone)
Fax:   530-661-1661 (fax)
Toll-Free:   888-HYGIEIA
Adverse Reaction Reporting:   530-661-1442 (telephone)
Fax:   530-661-1661 (fax)
Email: (email)
Every effort has been made to ensure the accuracy of the Avian Encephalomyelitis Vaccine information published above. However, it remains the responsibility of the readers to familiarize themselves with the product information contained on the US product label or package insert.

Copyright © 2022 Animalytix LLC. Updated: 2021-11-29