A H9N2 Human Case and Surveillance of Avian Influenza Viruses in Live Poultry Markets - Huizhou City, Guangdong Province, China, 2021

An increasing number of human infected avian influenza A (H9N2) cases have been reported. In 2021, 11 human infections with influenza A virus subtype H9N2 (A/H9N2) have been reported in China. A new case of H9N2 that occurred in April 2021 in Huizhou City, Guangdong Province, China, was reported in this study. Epidemiological and laboratory information of the case and routine influenza surveillance data of avian influenza A were presented in this report. The emergence of a human infected with Avian Influenza Virus H9N2 demonstrates that there is an urgent need to strengthen the surveillance of influenza-like illness and live poultry market.