Limited or No Serologic Evidence for Reunion Harrier (Circus maillardi) Exposure to Avian Influenza Virus, West Nile Virus, and Infectious Bronchitis Virus

Using molecular testing and serology, we investigated Reunion Harrier (Circus maillardi) exposure to avian influenza virus, West Nile virus, and infectious bronchitis virus. We detected influenza virus antibodies in 2 of 73 birds and hypothesized that infection might occur by consumption of poultry.