On April 26, 2024, the World Health Organization held a high-level meeting at the Institut Pasteur to highlight the importance of tackling meningitis, a disease that comes in multiple, often severe forms, some of which can kill in the space of hours. It is crucial that we improve our knowledge of meningitis. What are the symptoms, and how can it be prevented? Vaccination is the solution, both to protect individuals and to tackle outbreaks at global level. In France, three forms of bacterial meningitis, which mainly affect children, are covered by vaccination.