Children of foreign origin have better immunization coverage than children of swiss origin. This difference fades as children reach the teenage years and disappears in adulthood. On the other hand migrants have less access to preventive services. In teenagers, school immunization programs are the strongest determinant of good coverage. Immunization is only one aspect of adolescent preventive care but it provides the opportunity for a wider range of preventive activities. Multi-sectoral approaches including national and cantonal policies, school health services, primary care are needed to improve vaccine coverage and preventive opportunities at the same time. This article highlights the benefits of preventive services for young people whatever their origin and offers practical recommendations for immunization catch up in 11-25 year olds'.