1 Materno-fetal and Obstetrics Research Unit, Department Woman-Mother-Child, Lausanne University Hospital, 1011 Lausanne, Switzerland. Electronic address: david.baud@chuv.ch.
2 Clinic of Neonatology, Department Woman-Mother-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
3 Materno-fetal and Obstetrics Research Unit, Department Woman-Mother-Child, Lausanne University Hospital, 1011 Lausanne, Switzerland.
4 CHESS Center, The First Hospital of Lanzhou University, Lanzhou, China.
5 Division of Pediatric Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.
6 Aix Marseille Université, IRD, AP-HM, SSA, VITROME, IHU-Méditerranée infection, Marseille, France; Laboratoire Eurofins Labazur Guyane, French Guiana, France.