1. Department of Infectious Diseases Copenhagen University Hospital Hvidovre Denmark
2. Department of Public Health Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
3. Department of Infectious Diseases Copenhagen University Hospital Rigshospitalet Copenhagen Denmark
4. Department of Infectious Diseases Aalborg University Hospital Aalborg Denmark
5. Department of Infectious Diseases Odense University Hospital Odense Denmark
6. Midwifery Programme University College Copenhagen Copenhagen Denmark
7. Department of Infectious Diseases Aarhus University Hospital Aarhus Denmark
8. Department of Clinical Medicine Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark