Members of Medical research Unit of University Hospital of Reunion Island (DRCI - PB 350 - 97448 Saint-Pierre Cedex) : Lucie AUZANNEAU, Mélanie BEGORRE who provided substantial help in protocol submission to competent authorities, and Julie RUIZ, for data collection

Asetis association, with its “health bus” and its prevention animators, in whom children trusted to ask for information concerning sexuality and vaccination : Maryse PICARD, Stéphanie GONTHIER, Julianna DANESSINGA, Pierre RIVIERE,