Question

Infectious Coryza is a
1. Bacterial disease
2. Viral disease
3. Fungal disease
4. Nematode disease

Answer 1

Correct Answer - Option 1 : Bacterial disease

The correct answer is Bacterial disease.

• Infectious coryza is an acute, highly contagious, bacterial disease of the upper respiratory tract of chickens.
• Characterized by swelling of the face (facial oedema), and discharge from the eyes and nostrils.
• This disease is caused by a bacteria, Homophiles paragallinarum.
• Economic losses are due to a marked reduction in egg production (10-40%) in the layer.

• Prevention:
• In endemic areas, 2 doses of vaccine, each of which must consist of at least 108 colony-forming units are advocated, given subcutaneously
• The first at about 16 weeks of age and another one is given at 20 weeks of age.
• Prevention of infection into the farm is the best control, which could be achieved by hygiene, sanitation, strict biosecurity, and procurement of birds from disease-free sources.