Proportion of Tampa Bay population with elevated pH1N1 antibody titers and adjustment for hemagglutination inhibition (HI) assay sensitivity and specificity by age group — Tampa Bay Florida, November-December 2009.

1Seroprevalence adjusted for assay sensitivity and specificity. For children and adults aged 2Total seroprevalence results were age-standardized based on Tampa Bay population estimates from the American Community Survey (includes residents of Pasco, Hillsborough, Manatee and Pinellas counties).