1 Service des Maladies Infectieuses et Tropicales, Hôpital Universitaire de Fann, Dakar, Senegal.
2 Service des Maladies Infectieuses et Tropicales, Hôpital Universitaire de Fann, Dakar, Senegal; Department of Infectious Diseases, Bern University Hospital; Graduate School of Health Sciences, University of Bern, Bern, Switzerland.
3 Centre de Traitement Ambulatoire, Hôpital Universitaire de Fann, Dakar, Senegal.
4 Service des Maladies Infectieuses et Tropicales, Hôpital Universitaire de Fann, Dakar, Senegal; Department of Infectious Diseases, Bern University Hospital; Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland. Electronic address: gilles.wandeler@insel.ch.