Merck Manual

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Infectious laryngotracheitis virus, coughing and gasping, broiler
Infectious laryngotracheitis virus, coughing and gasping, broiler
Infectious laryngotracheitis virus, coughing and gasping, broiler

Broiler chickens coughing bloody exudate and gasping for air, characteristic of severe forms of the disease.

Courtesy of Dr. Maricarmen Garcia.