News & AnalysisPUBLIC HEALTH

Tense Vigil in China as Nasty Flu Virus Stirs Back to Life

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Science  29 Nov 2013:
Vol. 342, Issue 6162, pp. 1031
DOI: 10.1126/science.342.6162.1031

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Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety about the virus's potential to spark a pandemic. The possibility that H7N9 is hiding out in quail raises hopes that the virus may yet be eradicated at its original source.