A customer hands a slaughtered chicken to a vendor for purchase at a poultry market in Beijing January 21, 2009. China has warned of the risk of further human cases of bird flu in the run-up to the Lunar New Year holiday after reporting two new cases over the weekend. After not reporting a single human infection in almost a year, China has now confirmed three cases of the H5N1 virus in less than two weeks. REUTERS/David Gray (CHINA) REUTERS/DAVID GRAY
China warns of "grim" fight against deadly bird flu
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