News & Perspective

Aug 15, 2011

Aug 15, 2011

Study supports overall effectiveness of 2009 H1N1 vaccine

(CIDRAP News) – A large, multi-center study of how well the 2009 H1N1 vaccines performed in the United States during the pandemic found that it offered significant protection, especially in older children and nonelderly adults, and had the ability to cut the number of flu-related doctor visits by at least half.