Scientists race to gauge pandemic risk of new bird flu

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Scientists race to gauge pandemic risk of new bird flu

<p><a href="http://news.yahoo.com/scientists-race-gauge-pandemic-risk-bird-flu-140550033.html"><img src="http://l.yimg.com/bt/api/res/1.2/OO4UN4QdCafdNm9DXXx7QA--/YXBwaWQ9eW5ld3M7Zmk9ZmlsbDtoPTg2O3E9ODU7dz0xMzA-/http://media.zenfs.com/en_us/News/Reuters/2013-04-03T140550Z_1_CBRE932135X00_RTROPTP_2_HEALTH-BIRDFLU-CHINA.JPG" width="130" height="86" alt="Chicken is seen at a local market in Minhang district, south of Shanghai" align="left" title="Chicken is seen at a local market in Minhang district, south of Shanghai" border="0" /></a>By Kate Kelland LONDON (Reuters) - Genetic sequence data on a deadly strain of bird flu previously unknown in people show the virus has already acquired some mutations that might make it more likely to cause a human pandemic, scientists say. But there is no evidence so far that the H7N9 flu - now known to have infected nine people in China, killing three - is spreading from person to person, and there is still a chance it might peter out and never fully mutate into a human form of flu. ...</p><br clear="all"/>

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