I had my residency training in internal medicine in Tokyo, 1986-1988. From those days I

was interested in working in Africa, which let me do DTMH in London, followed by a post-graduate clinical training in Harare Central Hospital, Zimbabwe, 1989 where I encountered my life work, AIDS. My master project on HIV viral load at LSHTM in 1990 was so successful that I was offered a job as a clinical research fellow at the Jefferiss Wing, St. Mary’s Hospital by Professor Jonathan Weber. My asset of multi-disciplinary international human-network has been established when working in London (1990-92), Institute of Molecular Medicine, Oxford (1992) and MRC Laboratories, The Gambia, West Africa (1992-1998). Furthermore while working for National Institute of Infectious Diseases, Tokyo (1998-2005), I worked as a JICA expert in Thailand on and off for 4 years. In March 2005, I joined Nagasaki University as the Department Head of Clinical Medicine, Institute of Tropical Medicine (NEKKEN) and also as the head of Department of Infectious Diseases (NEKKEN NAIKA), Nagasaki University Hospital.