Identification of Clinical, Genetic and Immunological Factors Involved in the Development of Severe Bacterial Infections in Pediatrics

Inclusion Criteria

• •For patients:
• •Patient included in the DIABACT IV study between 2015 and 2018, following hospitalization in a pediatric intensive care unit in France for a severe bacterial infection.
• •Patient affiliated to a social security system
• •Patient alive at the time of inclusion.
• •Written consent from legal representatives for participation in research. If one of the legal representatives is unable to complete/sign the written consent, it will be sought orally by telephone and recorded in the patient's file. If the patient is over 18, written consent will be obtained. If the patient is a minor, consent will be sought with communication adapted to his/her level of understanding and age.
• •For parents:
• •Patient's biological parents
• •Written consent