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Estimates of the Prevalence of Pandemic (H1N1) 2009, United States, April–July 2009 Technical Appendix Sources for Parameter Estimates



Parameters were estimated from a number of different surveillance systems and special investigations. These sources are briefly described below. 2007 Behavioral Risk Factor Surveillance Survey (BRFSS) The BRFSS, a random-digit-dialed telephone survey was established by the Centers for Disease Control and Prevention (CDC) and state health departments in 1984 to obtain a representative sample of adults>18 years of age in each state and the District of Columbia. The BRFSS collects information annually on a core set of health behaviors, and also may include a variety of additional public health modules. In 2007, a module on influenza-like illness (ILI) was included in 9 states, designed to assess the incidence of ILI, health-seeking behavior, physician diagnosis of influenza, and treatment of influenza with antiviral medications. The 9 participatin

Year: 2010
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