H7N9, the latest variant of the avian flu virus, has spread 700 kilometers across three Chinese provinces since it was identified last month. With researchers struggling to identify how the disease is transmitted, concern is mounting about its danger to humans. Authorities culled poultry in Shanghai markets after detecting H7N9 in local pigeons. Taiwan will make anti-viral drugs available for public purchase, at a subsidized price, through April. While China reported that a ...
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