1. Department of Microbiology and Immunology, Faculty of Pharmaceutical Sciences, Hokuriku University, Kanazawa, Japan
2. Division of Persistent and Oncogenic Viruses, Center for Chronic Viral Disease, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
3. Kenya Medical Research Institute (KEMRI), Nairobi, Kenya
4. East African Herbarium, PO Box 40658, Nairobi, Kenya