A person has been infected with the H10N3 strain of bird flu in Zhenjiang, Jiangsu province, the National Health Commission said on Tuesday.

The patient, a 41-year-old man, developed a fever and other symptoms on April 23 and was admitted to hospital on April 28.He is now in a stable condition and has broadly met the standards for discharge, the commission said.

All his close contacts have been placed under medical observation and emergency monitoring has been initiated, it said, adding that nothing abnormal has been detected.

The Chinese Center for Disease Control and Prevention carried out whole-genome sequencing of a test sample on May 28 and the result was positive for the H10N3 virus.

The whole-genome analysis showed the virus was not effectively infectious to humans, experts said, adding that it poses a "very low" risk of a large-scale outbreak.