Affiliations

• ¹ Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden; FUTURE, Center for Functional Tissue Reconstruction, University of Oslo, Oslo, Norway.
• ² Hospital das Clínicas, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
• ³ Travel Health and International Health Regulations Team, UK Health Security Agency, London, UK.
• ⁴ Rare and Imported Pathogens Laboratory, UK Health Security Agency, London, UK.
• ⁵ Immunisation and Countermeasures Division, UK Health Security Agency, London, UK; Paediatric Infectious Diseases Research Group and Vaccine Institute, Institute of Infection and Immunity, St George's University of London, London, UK; British Paediatric Surveillance Unit, Royal College of Paediatrics and Child Health, London, UK.
• ⁶ Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London SW17 0QT, UK; Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK; Royal College of Obstetricians and Gynaecologists, London, UK. Electronic address: akhalil@sgul.ac.uk.