Via the Hong Kong government website: Zhejiang H7N9 case reported.
The Centre for Health Protection received notification today from the National Health & Family Planning Commission of an additional human case of avian influenza A(H7N9) in Zhejiang affecting a 34-year-old woman.
The patient fell ill on December 29, and tested positive for H7N9 on January 4. Her current condition is critical.
So far, a total of 146 human cases of H7N9 have been confirmed in the Mainland, including Zhejiang (52 cases), Shanghai (34 cases), Jiangsu (28 cases), Guangdong (six cases), Jiangxi (six cases), Fujian (five cases), Anhui (four cases), Henan (four cases), Beijing (two cases), Hunan (two cases), Shandong (two cases) and Hebei (one case).
The centre will follow up with Mainland health authorities for more details.
Note that the patient fell ill, and tested positive, on specific dates. The Chinese also announced the case very promptly after the test. Compare that with the Saudis' enigmatic announcements on MERS cases.