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The role of facemasks and hand hygiene in the prevention of influenza transmission in households: results from a cluster randomised trial; Berlin, Germany, 2009-2011

Thorsten Suess*, Cornelius Remschmidt, Susanne B Schink, Brunhilde Schweiger, Andreas Nitsche, Kati Schroeder, Joerg Doellinger, Jeanette Milde, Walter Haas, Irina Koehler, Gérard Krause and Udo Buchholz

BMC Infectious Diseases 2012, 12:26  doi:10.1186/1471-2334-12-26