1. Unit of Pediatric Infectious Diseases and Vaccinology, Department Women‐Mother‐ChildLausanne University HospitaLausanne Switzerland
2. Pediatric Pulmonology Unit, Department Women‐Mother‐ChildLausanne University HospitalLausanne Switzerland
3. Service of Pediatric Surgery, Department Women‐Mother‐ChildLausanne University HospitalLausanne Switzerland
4. Department of PathologyLausanne University HospitalLausanne Switzerland