Pediatric Intensive Care and Neonatal Medicine, Paris South University Hospitals, AP-HP, Le Kremlin-BicĂȘtre, France; and Endotoxins, Structures and Host Responses, Department of Microbiology, Institute of Integrative Biology of the Cell, CNRS, CEA, Univ. Paris Sud, Paris Saclay University, Gif sur Yvette, France.