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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.

The article presents information on recommendations issued by the U.S. Advisory Committee on Immunization Practices for prevention of hepatitis A after exposure to hepatitis A virus (HAV) and in international travelers. The committee recommends hepatitis A vaccination of all children at age 12 to 23 months, catch-up vaccination of older children in selected areas and vaccination of persons at increased risk for hepatitis A. Also, all travelers are recommended to receive immune globulin before departure in order to prevent the risk for HAV infection.

Summarizes the results of positive tests for acute hepatitis A virus infection conducted in the U.S. from 2002 to 2004. Findings of an investigation conducted by the Connecticut Department of Public Health; Total number of hepatitis A case reported to the Alaska Division of Public Health during 2002 to 2004; Background on the Sentinel Counties Study of viral hepatitis conducted in the country in 2003.

Describes several outbreaks of hepatitis B virus (HBV) infections among residents in long-term care facilities in the U.S. in 2003 and 2004. Recommended practices for preventing patient-to-patient transmission of hepatitis viruses from diabetes-care procedures; Details of performing serological tests on specimens from nursing home residents in Mississippi; Number of HBV infections that occur each year in the U.S.

Summarizes the results of the analysis by the U.S. Centers for Disease Control and Prevention on the epidemiology of acute hepatitis B in the country. Description of Hepatitis B virus (HBV); Distribution of people with acute hepatitis B incidence in Baltimore County, Maryland; Changes in the strategy used to eliminate HBV transmission in the U.S.