The Hong Kong Centre for Health Protection (CHP) reported recently six additional human H9N2 avian influenza cases from Mainland China.
Five of the cases were in young children and four cases had an onset date of 2021.
No deaths were reported.
In most human cases of H9N2 avian flu, the associated disease symptoms have been mild and there has been no evidence of human-to-human transmission. Influenza A(H9N2) viruses are enzootic in poultry populations in parts of Africa, Asia and the Middle East.
Most human cases are exposed to the A(H9N2) virus through contact with infected poultry or contaminated environments. Human infection tends to result in mild clinical illness.