1 Université Paris Diderot, Sorbonne Paris Cité, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), Hôpital Bichat-Claude Bernard, Service de Maladies Infectieuses et Tropicales, Paris, France.
2 Université Paris Descartes, Sorbonne Paris Cité, Paris, France; Assistance Publique-Hôpitaux de Paris (AP-HP), DHU risks and pregnancy, CIC Cochin Pasteur, Hôpital Cochin, 75679 Paris, France; Inserm, CIC 1417, F-CRIN, Innovative clinical research network in vaccinology (I-REIVAC), Paris, France; UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Paris, France. Electronic address: odile.launay@aphp.fr.