China's H7N9 bird flu spread west to the central province of Henan on Sunday, as government websites and state media reported two deaths and 11 new cases nationwide.
Fans arrive at the circuit wearing face-masks after a recent outbreak of the bird flu virus, during qualifying for the Formula One Chinese Grand Prix in Shanghai, on April 13, 2013. China's H7N9 bird flu virus spread to a new province on Sunday, with state media reporting two human cases in central Henan just west of the area where the disease has been centred.
The new strain of the flu had been confined to the eastern city of Shanghai and nearby Zhejiang, Jiangsu and Anhui until Saturday when the first case was reported in Beijing.
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