1. Department of Dermatology, Allergy Unit University Hospital, University of Basel Basel Switzerland
2. Department of Dermatology University Hospital Basel Basel Switzerland
3. University of Basel Basel Switzerland
4. Pediatric Respiratory Medicine Children's University Hospital of Bern, University of Bern Bern Switzerland
5. Swiss Tropical and Public Health Institute Allschwil Switzerland
6. Department of Sport, Exercise and Health University of Basel Basel Switzerland
7. Department of Human Movement Science Nelson Mandela University Ggeberha South Africa
8. Department of Infectious Diseases and Hospital Epidemiology University Hospital Basel Basel Switzerland