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Science  12 Jul 2013:
Vol. 341, Issue 6142, pp. 122-125
DOI: 10.1126/science.341.6142.122

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Happenstance led Chen Hualan to influenza research in 1994; at the time, says the 44-year-old virologist, "nobody cared about flu" in China. But events soon put her in the center of action. As the point person for animal testing and research for avian flu, she has seen the country through periodic outbreaks of the deadly flu virus H5N1. When news of the novel virus H7N9 infecting humans broke in late March, Chen faced suspicions from other scientists that she was hiding information about the outbreak. A controversial study she authored on how H5N1 might spread from human to human has kept her in the crossfire.