Safety of Vaccines Used for Routine Immunization in the United States: An Update Safety of Vaccines Used for Routine Immunization in the United States: An UpdateComparative Effectiveness ReviewNumber 244R Comparative Effectiveness Review Number 244 Safety of Vaccines Used for Routine Immunization in the United States: An Update Prepared for: Agency for Healthcare Research and Quality U.S on an evidence report, Safety of Vaccines Used for Routine Immunization in the United States: An Update, by the Evidence-based Practice Center Program at the Agency for Healthcare Research and Quality (AHRQ). Suggested citation: Gidengil C, Goetz MB, Maglione M, Newberry SJ, Chen P, O’Hollaren K, Qureshi N, Scholl K, Ruelaz Maher A, Akinniranye O, Kim TM, Jimoh O, Xenakis L, Kong W, Xu Z, Hall O, Larkin J