1. Laboratory of Clinical Virology, Medical School, University of Crete, 71003 Heraklion, Greece
2. Department of Anthropology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
3. Department of Paediatrics, ‘Penteli’ Children's Hospital, 15236 Penteli, Greece
4. COVID‑19 Reference Centre, ‘Rafina’ Health Care Centre, 19009 Rafina, Greece
5. Paediatric Intensive Care Unit (PICU), University Hospital of Patras, 26504 Rio, Greece
6. Department of Public Health Policy, School of Public Health, University of West Attica, 11521 Athens, Greece
7. First Department of Paediatrics, University of Athens School of Medicine, 11527 Athens, Greece
8. Hepatitis Virus Diversity Research Unit, Department of Internal Medicine, School of Clinical Medicine, University of the Witwatersrand, 2193 Johannesburg, South Africa
9. St. George's University of London, SW17 0RE London, UK