TY - JOUR A1 - Viboud, C. A1 - Tam, T. A1 - Fleming, D. A1 - Miller, M.A. A1 - Simonsen, L. T1 - influenza epidemic, England and Wales, Canada, and the United States Y1 - 2006 DO - 10.3201/eid1204.050695 VL - 12 IS - 4 ER -