1. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
2. Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
3. Medical Diagnostics Karolinska, Karolinska University Hospital, Stockholm, Sweden
4. SLB-analys, Environment and Health Administration, Stockholm, Sweden
5. Department of Clinical Sciences and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
6. Department of Pediatrics, Sachs Children’s Hospital, Stockholm, Sweden
7. Department of Cardiology, Danderyd Hospital, Stockholm, Sweden
8. Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
9. and the BAMSE COVID-19 Study Group