Initiative Description: Live attenuated influenza vaccine was given to 5319 (44%) of the 12090 students enrolled in public elementary schools in Carroll County, Maryland, during the fall of 2005. Researchers examined the impact of this community-based intervention on countywide student absenteeism during the subsequent influenza outbreak.

Study Results: Countywide school-based influenza vaccination was associated with reduced absenteeism during an influenza outbreak.

Reference: Davis, M., King, J., Moag, L., Cummings, G., & Magder, L. (2008). Countywide school-based influenza immunization: Direct and indirect impact on student absenteeism. Pediatrics, 122(1), E260-E265. doi:10.1542/peds.2007-2963

Level of Evidence: 3 out of 5 stars Very Good