1. Medical Department; St. Paul's Hospital Millennium Medical College; Addis Ababa Ethiopia
2. Aklilu Lemma Institute of Pathobiology; Addis Ababa University; Addis Ababa Ethiopia
3. Research Unit; Sørlandet Hospital HF; Kristiansand Norway
4. Department of Global Development and Planning; University of Agder; Kristiansand Norway
5. Centre for Imported and Tropical Diseases; Oslo University Hospital; Ullevål Oslo Norway