Where has the high pathogenic H5N1 strain of avian flu virus been detected?
To date, the high pathogenic H5N1 strain of avian flu has not been detected in North America. An extensive government surveillance system has been established to detect its arrival should it occur. The World Organization for Animal Health and The World Health Organization maintain web pages devoted to reporting all laboratory confirmed cases of the H5 strains of avian flu in animals and humans based on location.