A six-year-old local boy living in Shenzhen has become the youngest Hongkonger to be infected with the H7N9 bird flu virus.
The Centre for Health Protection said the boy developed flu symptoms on January 27 and was given medicine by his family. He visited Hong Kong the next day with his mother and four relatives.
When he returned to Shenzhen that evening, he was found to have a fever. He tested positive for the potentially deadly virus yesterday, according to the centre. His symptoms were said to be mild and his condition stable.
The centre said the boy and other members of the group spent most of their time in Hong Kong shopping and did not meet friends or relatives.
An immigration officer who came into contact with the boy at the Lo Wu checkpoint will be placed under medical surveillance.
Another case of H7N9 infection was also reported in Guangdong involving a five-year-old boy in Zhaoqing . He is said to be in a stable condition in a local hospital.
And mainland authorities yesterday reported that on Friday an 82-year-old man had died from the virus, also in Guangdong, in the city of Foshan .
Meanwhile, a 38-year-old man from Yongzhou in Hunan province was stable after reportedly being infected.
More than 110 cases, over 20 of them fatal, have been reported on the mainland this year. The Hong Kong government said 43 of them had been in Guangdong.
There have been four cases in Hong Kong, three of them fatal. Survivor Tri Mawarti, an Indonesian domestic helper, left hospital last month after treatment.