Duration of RSV Season, by U.S. Department of Health and Human Services Region and Florida, July 2011-June 2012
Chart: Duration of RSV Season, by U.S. Department of Health and Human Services Region and Florida, July 2010- June 2011 (listed by region number, or state, and headquarter city in order from earliest to latest RSV season start date): Florida onset: mid-August 2011; offset: early March 2012. Region 3 (Philadelphia) onset: late October 2011; offset: late March 2012. Region 2 (New York) onset: mid-November 2011; offset: mid-March 2012. Region 6 (Dallas) onset: mid-November 2011; offset: late March 2012. Region 1 (Boston) onset: early December 2011; offset: early March 2012. Region 4 (Atlanta) onset: early December 2011; offset: late March 2012. Region 5 (Chicago) onset: early December 2011; offset: late April 2012. Region 9 (San Francisco) onset: mid-December 2011; offset: early May 2012. Region 10 (Seattle) onset: late December 2011; offset: late April 2012. Region 8 (Denver) onset: early January 2012; offset: mid-May 2012. Region 7 (Kansas City) onset: mid-January 2012; offset: mid-April 2012.

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