The symptoms of the two-month-old girl infected with influenza-A (H9N2) are subsiding, the Centre for Health Protection says, adding her parents have tested negative for the virus.

She is stable and still isolated in Tuen Mun Hospital. Other patients and health workers who might have been exposed to the girl are being examined. None have developed respiratory-infection symptoms so far.

Guangdong health authorities have found a small number of chickens kept in a food premises near the girl's Shenzhen home. Her contacts in Shenzhen and the food premises workers are asymptomatic and under medical surveillance.