1. Institute for Infectious Diseases, University of Bern, Bern, Switzerland
2. Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
3. World Trade Institute (WTI), University of Bern, Bern, Switzerland
4. Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
5. WHO Collaborating Centre for Gonorrhoea and other STIs, Örebro University, Örebro, Sweden