The first confirmed Avian Flu case in Hawaii was found in a backyard flock of birds in Central Oahu. The state said the virus matches the strain that infected dairy cows and domestic poultry on the mainland.

Since Influenza A or flu viruses are named after the animal where they are most commonly found, avian viruses are naturally found in birds. H5N1 is a highly transmissible and usually mild disease in geese,

Initial testing had indicated the teenager's infection was from bird flu and was confirmed in further testing, the Public Health Agency of Canada said in a statement. The teen has been hospitalized in Vancouver since Friday and was reported in critical condition on Tuesday.