Collaboration with community-based organizations improved immunization rates in children from low-income families. Researchers in Syracuse, New York, collaborated with the county health department and the Salvation Army, enrolling 630 low-income families (a total of 1,531 children) in a study at 10 sites where the Salvation Army distributes gifts during the holidays. The researchers interviewed parents, addressing concerns about vaccination and providing education on its safety and importance. Of the 1,477 children with accurate immunization records, 416 (28%) had completed all vaccinations. Nine months after study enrollment, the proportion of completely vaccinated children had increased 45%, and the influenza vaccination rate had increased from 32% to 49%. The 17% increase in the influenza vaccination rate was significantly greater than county and statewide increases during the same period. The report appears in the August Pediatrics.