A single case of infection with influenza strain H10N3 was reported during April in a man aged 41 in the city of Zhenjiang, in southern Guangdong Province. He has since been discharged from hospital. In past years H10 strain influenza isolates have been obtained from migratory birds in Asia and North America but H10 influenza is not regarded as a significant infection of commercial poultry. 

It is incorrect to designate the H10N3 isolate as “avian influenza” since there no evidence that the infection was acquired from birds and to date this strain does not appear to infect poultry in China although diverse strains of H5 and H7 are prevalent and controlled with vaccines.