China bird flu
China's small farmers pose huge challenge in swine fever battle
In any case, the disease was only present in the south, added Wang. In fact, the first outbreak was reported in Shenyang, also in the northeast.
The site is about 400 km south of the city of Lianyungang, where authorities detected another outbreak in the eastern province.
The case involved a 68-year-old woman in Jiangsu province who developed symptoms on 25 December, was admitted to hospital on 1 January and discharged on 22 January.