Reply To: Comments re H5N1 Outbreaks and Enzootic Influenza Home Birding, Conservation, Travel H5N1 Poultry Flu and migratory birds Comments re H5N1 Outbreaks and Enzootic Influenza No title 11 March 2006 at 12:14 pm #4058 AnonymousGuest Vienna – Three cats were at one point carriers of the H5N1 bird flu virus in the southern Austrian province of Styria, but two of them have since rejected the virus, says a health official.