Dakar - On July 1, 2025, Senegal officially launched the introduction of the hexavalent vaccine into its Expanded Program on Immunization (EPI). Following in Mauritania's footsteps, Senegal is part of this regional dynamic of vaccine innovation. This vaccine is a combination that protects against six diseases: diphtheria, tetanus, whooping cough, hepatitis B, Haemophilus influenzae type B (Hib), and poliomyelitis. It replaces the pentavalent and inactivated polio vaccines (IPV), previously administered separately.