1. Impact of influenza vaccination on seasonal mortality in the US elderly population;Simonsen;Arch Intern Med,2005
2. Swine-origin influenza A (H1N1) virus infections in a school - New York City, April 2009;Jordan;MMWR Morb Mortal Wkly Rep,2009
3. Swine influenza A (H1N1) infection in two children - Southern California, March-April 2009;Ginsberg;MMWR Morb Mortal Wkly Rep,2009
4. Outbreak of swine-origin influenza A (H1N1) virus infection - Mexico, March-April 2009;General Directorate of Epidemiology, Ministry of Health, Mexico; Pan American Health Organization; World Health Organization; Public Health Agency of Canada; CDC (United States);MMWR Morb Mortal Wkly Rep,2009
5. Update: infections with a swine-origin influenza A (H1N1) virus - United States and other countries, April 28, 2009;Strategic Science and Program Unit, Coordinating Center for Infectious Diseases; Div of Global Migration and Quarantine, National Center for Preparedness, Detection, and Control of Infectious Diseases; Influenza Div, National Center for Immunization and Respiratory Diseases, CDC Influenza Emergency Response Team, CDC;MMWR Morb Mortal Wkly Rep,2009