Avian influenza, ischemic necrosis of comb and wattles, chicken
Avian influenza, ischemic necrosis of comb and wattles, chicken
Avian influenza, ischemic necrosis of comb and wattles, chicken

    The unfeathered head regions of this chicken with avian influenza show evidence of hemorrhage and ischemic necrosis.

Courtesy of Dr. David E. Swayne.

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