Effectiveness of influenza vaccine for preventing laboratory-confirmed influenza hospitalizations in adults, 2011-2012 influenza season.

Talbot HK, Zhu Y, Chen Q, Williams JV, Thompson MG, Griffin MR
Clin Infect Dis. 2013 56 (12): 1774-7

PMID: 23449269 · DOI:10.1093/cid/cit124

During the 2011-2012 influenza season, we enrolled hospitalized adults with acute respiratory illness and tested each for influenza using reverse transcription polymerase chain reaction. Influenza vaccination was verified in 35% (6/17) of adults with influenza-associated hospitalizations compared to 64% (97/152) of test-negative controls; adjusted vaccine effectiveness was 71.4% (95% confidence interval, 17.1%-94.9%).

MeSH Terms (11)

Aged Case-Control Studies Female Hospitalization Humans Influenza, Human Influenza Vaccines Male Middle Aged Respiratory Tract Infections Vaccination

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