Major Finding: Between April 2009 and Dec. 12, 2009, there were an estimated 55 million cases of H1N1 influenza in the United States; between 7,880 and 16,460 of those infected have died. By Jan. 2, 2010, 61 million Americans had been vaccinated, including 38% of individuals in the limited vaccine subset of the initial target groups.
Data Source: Centers for Disease Control and Prevention.
PREVIEW