Evaluation of Immune Response Against the Strain of Neisseria Meningitidis B: 14, P1-7, 16 Patients Vaccinated With MenBVac® (Extension MenbVac) This study aims to estimate the vaccinal immunity four years after four doses of MenbVac in children aged 4-8 years.

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Creation of a Biotheque of Patients of Seine-Maritime With Meningococcal Infection The main objective of this study is to constitute a biotheque of patients with meningococcal disease to enable results to be interpreted and genetic factors to be determined

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