Common signs of illness

Signs of Respiratory Infection

A disease-causing organism can affect more than one system, leading to a variety of different clinical signs. There is considerable overlap in the commons signs of respiratory diseases, making diagnosis difficult without a necropsy.

Common signs of respiratory infection include the following:

Less common signs of respiratory infection include the following:

Signs of Nonrespiratory Infection

Common signs of nonrespiratory infection include the following:

NOTE It is not unusual for poultry to die suddenly without showing any signs of disease.

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