Definition:
Mostly affecting laying hens and broilers, infectious coryza is a highly contagious respiratory illness.
Cause:
Infectious coryza is brought on by the bacteria Avibacterium paragallinarum, formerly known as Haemophilus paragallinarum.
Aerosols from coughing or sneezing, direct contact with diseased birds, and contaminated bedding or equipment are the three main ways that the disease is spread.
Signs and symptoms
Clear, watery, or purulent nasal discharge
Sneezing
Swelling of the face
inflammation of the eyes
decreased yield of eggs
Appetite loss
Gram staining of nasal discharge samples and clinical symptoms were used to make the diagnosis.
Therapy/Medication:
Antibiotics (such as amoxicillin and oxytetracycline)
Anti-inflammatory medications
Supportive care, such as food and hydration
Prevention through immunization
Biosecurity precautions (e.g., disinfection, isolation of diseased birds)
Good hygiene and sanitation
Complications include egg drop syndrome, chronic coryza, and secondary bacterial infections.
Prognosis: With therapy, most birds get well.
Some, nevertheless, can get long-term infections or other issues.
Human health is not at risk from infectious coryza. Although it is a prevalent illness in chicken flocks, it is efficiently treatable and preventable.
When to Call a Veterinarian
If your chickens show severe symptoms or do not improve with treatment, consult a veterinarian. They can provide accurate diagnosis, recommend appropriate antibiotics, and advise on vaccination options.