1. Faculty of Biology and Medicine, University of Lausanne, Switzerland
2. Follow-up Unit, Clinic of Neonatology, Department Woman-Mother-Child, Lausanne University Hospital, Switzerland / Clinic of Neonatology, Department Woman-Mother-Child, Lausanne University Hospital, Switzerland
3. Clinic of Neonatology, Department Woman-Mother-Child, Lausanne University Hospital, Switzerland
4. Institute of Microbiology, Department of Laboratories, Lausanne University Hospital, Switzerland / Infectious Diseases Service, Department of Medicine, Lausanne University Hospital, Switzerland
5. Infectious Diseases Service, Department of Medicine, Lausanne University Hospital, Switzerland / Paediatric Infectious Diseases and Vaccinology Unit, Department Woman-Mother-Child, Lausanne University Hospital, Switzerland