Merck Manual

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Infectious laryngotracheitis virus, mild hemorrhagic tracheitis, broiler
Infectious laryngotracheitis virus, mild hemorrhagic tracheitis, broiler
Infectious laryngotracheitis virus, mild hemorrhagic tracheitis, broiler

Mild hemorrhagic tracheitis, characteristic of mild forms of infectious laryngotracheitis virus in a broiler.

Courtesy of Dr. Maricarmen Garcia.