University of Maryland Extension

Infectious Coryza (IC): Frequently asked questions (FAQs)

Infectious Coryza (IC) is a rapidly spreading respiratory disease that mainly affects chickens and, occasionally, pheasants and Guinea fowl of all ages. Currently, there is an ongoing outbreak in some poultry flocks in the northeastern U.S. This publication addresses the most frequently asked questions about IC and how to prevent and control it.

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