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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Avian influenza, ischemic necrosis of comb and wattles, chicken
avian_influenza_hemorrhagic_skin_head_chicken_high
Avian influenza, ischemic necrosis of comb and wattles, chicken

    Hemorrhagic skin visible on the unfeathered head regions of a chicken with avian influenza.

Courtesy of Dr. David E. Swayne.

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Avian Influenza

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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