Effectiveness of inactivated influenza vaccines varied substantially with antigenic match from the 2004-2005 season to the 2006-2007 season.

@article{Belongia2009EffectivenessOI,
  title={Effectiveness of inactivated influenza vaccines varied substantially with antigenic match from the 2004-2005 season to the 2006-2007 season.},
  author={Edward A. Belongia and Burney A. Kieke and James G. Donahue and Robert T Greenlee and Amanda L. Balish and Angie S Foust and Stephen L Lindstrom and David K Shay},
  journal={The Journal of infectious diseases},
  year={2009},
  volume={199 2},
  pages={159-67}
}
BACKGROUND We estimated the effectiveness of inactivated influenza vaccines for the prevention of laboratory-confirmed, medically attended influenza during 3 seasons with variable antigenic match between vaccine and patient strains. METHODS Patients were enrolled during or after a clinical encounter for acute respiratory illness. Influenza infection was confirmed by culture or reverse-transcriptase polymerase chain reaction. Case-control analyses were performed that used data from patients… CONTINUE READING