Adolescents and parents' education and motivation at school (component 1 -- arms 1-4) and "KABP-6C" survey among adolescents and parents (arms 1-6)  Inclusion Criteria:  Adolescents (school years 9-10), and parents of adolescents (school years 7-10) attending secondary schools in the participating municipalities.  Exclusion Criteria:  /  General practitioners' training (component 2) and "KABP-6C" survey among general practitioners (arms 1, 2 and 5)  Inclusion Criteria:  General practitioners' practicing in the participating municipalities.  Exclusion Criteria:  Exclusive particular type of practice. Planning to retire or move their practice within the study period. No internet access.  Access to vaccination at school (component 3 -- arms 1 and 3)  Inclusion Criteria:  Adolescents (school years 7-10) attending secondary schools in the participating municipalities, aged 11-14 years (with a possible catch-up for those aged 15-19 years according to the French recommendations).  Exclusion Criteria:  Having initiated HPV vaccination. No written consent from parents/caregivers for vaccination. Contraindication to HPV vaccination.