Université Paris Cité - Institut Pasteur, Biodiversity and Epidemiology of Bacterial Pathogens, Université Paris Cité - Institut Pasteur, Biodiversity and Epidemiology of Bacterial Pathogens, Université Paris Cité - Institut Pasteur, Biodiversity and Epidemiology of Bacterial Pathogens, Hospices Civils de Lyon - Department of Pediatric Emergency and Intensive Care Unit, University Hospital Center of Nantes - Department of General Pediatrics, Université Paris Cité - Hôpital Robert Debré APHP, Department of General Pediatrics, Center of Saint-Brieuc - Department of Internal Medicine and Infectious Diseases, University Hospital Center of Bordeaux - Department of General Pediatrics, University Hospital Center of Montpellier - Department of General Pediatrics, University Hospital Center of Tours - Department of General Pediatrics, Université Paris Est - Centre Hospitalier Intercommunal Créteil, Department of General Pediatrics, Rouen University - University Hospital Center Charles Nicolle, Neonatal and Pediatric Intensive Care Department, Université Paris Cité - Hôpital Armand-Trousseau, Department of General Pediatrics, Université de Paris - Necker Enfants Malades Hospital, Department of Pediatric Intensive Care Unit, University Hospital Center of Saint Etienne - Department of Pediatric Emergency, Hospices Civils de Lyon - Department of Pediatric Emergency and Intensive Care Unit, French National Public Health Agency - Santé Publique France, National Reference Center for Whooping Cough and other Bordetella infections - Institut Pasteur, National Reference Center for Whooping Cough and other Bordetella infections - Institut Pasteur, Université Paris Cité - Institut Pasteur, Biodiversity and Epidemiology of Bacterial Pathogens, Université Paris Cité - Hôpital Necker–Enfants Malades APHP, Department of General Pediatrics and Pediatric Infectious Diseases and Université de Paris - Department of General Paediatrics