Initiative Description: A local public health agency initiated school-based influenza vaccination in two Wisconsin elementary schools during October 2010 (exposed schools); two nearby schools served as a comparison group (non-exposed schools).

Study Results: School-based influenza vaccination was associated with reduced absenteeism due to fever or cough illness, but not absenteeism for other reasons.

Reference: Kjos, S. A., Irving, S. A., Meece, J. K., & Belongia, E. A. (2013). Elementary school-based influenza vaccination: Evaluating the impact on respiratory illness absenteeism and laboratory-confirmed influenza. PLoS One, 8(8) doi:

Level of Evidence: 2 out of 5 stars Good