Identification of Genetic Variants Associated With Unexpected Infant Death Syndrome

Child Inclusion Criteria * Death of a child between 0 and 2 years of age due to sudden unexpected death in infant * Child included in the French SUDI registry with effective participation in the biocollection * Children who also meet the inclusion criteria for the BIOMINRISK-NEUROBIO (axis 2) and BIOMINRISK-RADIO-ANAT (axis 3) studies in the overall BIOMINRISK project. Parents Inclusion Criteria * Biological parents of the child included in the BIOMINRISK study * Parents who have both signed the consent form for blood collection and inclusion of their samples in the biocollection * parents beneficiaries of a social security or similar scheme Child Exclusion Criteria: * Presence of a known metabolic, genetic or syndromic pathology at the time of death Parents Exclusion Crtiteria: * Parent under guardianship * Presence of a known metabolic, genetic or syndromic pathology