Prof. Okelo obtained his Medical Degree (MD) from the University of Kenya; DTM&H (Diploma of Tropical Medicine and Hygiene) from the School of Tropical Medicine and Hygiene of Liverpool, Diploma of MRCP (Member of the Royal Colleges of Physicians), FRCP (Fellow of the Royal College of Physicians) from the University of Edinburgh (Scotland) and MBCHB (Bachelor of Medicine and Bachelor of Surgery/Chirurgy) Degree from the University of Calcutta in India. He is Senior Consultant Physician – specialist in infectious diseases and a global authority on Echinococcosis. He has served as Chairman of the Department of Internal Medicine and Dean of the Faculty of Medicine at the University of Nairobi, and Director of Medical Services in the Government of Kenya. He has been Executive Director and Secretary General of the African Academy of Sciences (AAS), Executive Secretary of the Network of African Scientific Organizations (NASO), and Secretary of the Network of African Academy of Science (NASAC). He is member of Royal Society of Tropical Medicine and Hygiene of London and member of the Advisory Committee to the Editor (ACE) of the book Disease Control Priorities in Developing Countries. He has 100 peer reviewed papers and is an elected Fellow of TWAS.
