Australia's agriculture minister confirmed on August 3 the country's first H5N1 mass mortality event, with 49 greater crested terns found dead and 35 sick at a coastal site; 74 infections have been confirmed across four states, all in wild birds, with no commercial farm cases recorded; officials warned wider wildlife spread is likely
A highly pathogenic influenza A subtype entrenched in US dairy cattle and wild birds globally, with a historic 46% human case fatality rate and sustained pandemic concern.
full dossier ›More than 500 dairy herds and fresh poultry losses keep egg prices elevated while researchers map new transmission routes
A sick brown skua near Esperance tests positive on June 20, ending Australia's H5-free status as a second seabird is checked