Interim Results: Influenza A (H1N1) 2009 Monovalent Vaccination Coverage -- United States, October-December 2009.

The article presents the interim results of an influenza A (H1N1) monovalent vaccination coverage conducted in the U.S. from October to December 2009. The Advisory Committee on Immunization Practices released recommendations for use of the H1N1 2009 monovalent vaccine in July 2009. The Centers for Disease Control and Prevention reviewed results from the National 2009 H1N1 Flu Survey and the Behavioral Risk Factor Surveillance System survey. Respondents with missing influenza vaccination information were disregarded for both surveys.