Newcastle disease in poultry is caused by which pathogen?
Correct answer: D. Avian paramyxovirus type 1
- A. Avian influenza virus
- B. Infectious bursal disease virus
- C. Infectious bronchitis virus
- D. Avian paramyxovirus type 1
Explanation
Newcastle disease is caused by virulent strains of avian paramyxovirus type 1, also called Newcastle disease virus. Avian influenza and infectious bronchitis are separate viral diseases with different causative viruses.
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