As the rate of doctor-patient encounter is low during adolescence, it is justified to administer vaccines within the school health system. indeed, the first results of the HBV vaccination are extremely encouraging. In Switzerland, it is recommended to immunize adolescents 11 to 15 against diphtheria, tetanus, HBV and meningococcus C. Vaccination against varicella is recommended for those who display no history of varicella. This vaccine, along with adjustment immunizations should be done by primary care physicians. All pediatricians, general practitioners and gynecologists should take every opportunity to check adolescents' vaccination status and immunize them according to what they found.