According to a ProMED mail posting on September 6th, health officials in China reported a case of H9N2 avian influenza in a 20-month-old patient in Changsha, Hunan Province. Family contacts were unaffected. The child had a history of exposure to domestic poultry prior to onset of illness.  For 2021 to date, 15 cases of H9N2 have been reported in humans with a total of 56 cases since December 2015.

The World Health Organization regards H9N2 as a pathogen with pandemic potential.