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The spread of a deadly strain of bird flu in China is slowing, health authorities said, as they vowed to tighten controls on markets and the transport of live poultry to battle the virus. As many as 79 people died from H7N9 bird flu in January, the government has said, or up to four times more than the corresponding figure in previous years, stoking worries this season's spread of the virus could be the worst on record. [Source: Reuters]
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