The World Health Organization (WHO) confirmed three new H9N2 avian influenza cases in China in the last week of April. All cases involved children who were either living in or somehow had connections to Hunan province. WHO noted two variant H1N1 influenza cases in young Chinese females. 

According to an article published by the University of Minnesota, one of the H9N2 patients is a 10-year-old girl from Hunan province who fell ill in October 2022. The second is a two-year-old boy, also from Hunan province. The boy's symptoms began on February 5. According to the report, he had been exposed to backyard poultry before he became ill. 

The third case of H9N2 influenza was confirmed in a three-year-old girl from Jiangxi province. Her symptoms began on January 31. It is believed that she also had exposure to backyard poultry in Hunan province.