From 29 May to 4 June 2026, one new case of human infection with avian influenza A(H9N2) virus was reported to WHO in the Western Pacific Region. The case is a 4-year-old male child from Yunnan Province, China, with symptom onset on 17 May 2026. The case had no direct contact with poultry but had exposure to environments where poultry were present. No additional cases were reported from close contacts.
Since 2015, a total of 167 cases of human infection with avian influenza A(H9N2), including two deaths (both with underlying conditions), have been reported to WHO in the Western Pacific Region. Of these, 164 were reported from China, two were from Cambodia, and one was from Viet Nam.