The state confirmed Friday that highly pathogenic avian influenza was detected in a backyard flock of various birds in Central Oahu.

The health department regularly samples wastewater as part of their efforts to detect infectious diseases. This surveillance was able to detect avian flu in the past week. The department is now investigating possible sources of the case.

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.