1. Institute of Endemic Diseases,1
2. Faculty of Medical Laboratory Sciences,2and
3. Department of Microbiology and Infectious Diseases, Erasmus University Medical Center Rotterdam (EMCR), Rotterdam,3 and
4. Department of Surgery,4 University of Khartoum, Sudan, and
5. Centraalbureau voor Schimmelcultures (CBS), Baarn,5 The Netherlands