TY - GEN AU - Nishiura,Hiroshi TI - The virulence of pandemic influenza A (H1N1) 2009: an epidemiological perspective on the case-fatality ratio SN - 1747-6356 PY - 2010///0914 KW - Adolescent KW - Adult KW - Age Distribution KW - Age Factors KW - Aged KW - Child KW - Child, Preschool KW - Comorbidity KW - Disease Outbreaks KW - history KW - Health Policy KW - History, 20th Century KW - Humans KW - Infant KW - Infant, Newborn KW - Influenza A Virus, H1N1 Subtype KW - pathogenicity KW - Influenza, Human KW - epidemiology KW - Middle Aged KW - Risk Assessment KW - Risk Factors KW - Severity of Illness Index KW - Time Factors KW - Virulence KW - Young Adult N1 - Publication Type: Historical Article; Journal Article; Research Support, Non-U.S. Gov't; Review UR - https://doi.org/10.1586/ers.10.24 ER -