1. Swiss Tropical and Public Health Institute (Swiss TPH) Allschwil Switzerland
2. University of Basel Basel Switzerland
3. Tropical Medicine Hospital Khartoum Sudan
4. The Mycetoma Research Center University of Khartoum Khartoum Sudan
5. Unit of Applied Medical Sciences, Faculty of Medical Laboratory Sciences University of Khartoum Khartoum Sudan
6. Department of Medical Microbiology and Infectious Diseases University Medical Center Rotterdam, ErasmusMC Rotterdam The Netherlands
7. Institute of endemic diseases University of Khartoum Khartoum Sudan