News & Perspective

Oct 29, 2004

Oct 29, 2004

Ducks may be silent carriers of H5N1 avian flu

(CIDRAP News) – Healthy-looking ducks may be acting as a "silent" reservoir for the deadly H5N1 influenza, the World Health Organization (WHO) announced today.

A new laboratory study of domestic ducks infected with several 2004 H5N1 viruses shows that ducks shed more of this virus compared with ducks infected with H5N1 viruses from 2003, researchers in Tennessee found. Ducks also shed the 2004 viruses from 1 to 7 days longer.