Bird flu or avian influenza is a disease caused by
A. Avian influenza Type A viruses
B. Avian influenza Type B viruses
C. Avian influenza Type C viruses
D. None of these
Explanation:
Recently an 11-year-old boy died of H5N1 avian influenza in Delhi. This is the first recorded death due to the bird flu in India this year. Bird flu or avian influenza is a disease caused by avian influenza Type A viruses found naturally in wild birds worldwide.
