Prof. Arimi was born in 1949. He graduated from the University of Nairobi with a Bachelor of Veterinary Medicine (BVM) in 1976 and subsequently joined the Department of Public Health, Pharmacology and Toxicology. As part of his MSc. studies, he undertook a postgraduate course in diagnostic microbiology and mastitis diagnostic procedures at the University of Oslo, Veterinary School in 1977. In 1979, he graduated from the University of Nairobi with a MSc degree in Public Health (Dairy Microbiology) and taught food and milk hygiene. In 1984 he registered at the University of Reading, UK, for PhD in microbiology and graduated in 1987. He returned to Kenya and resumed his teaching and research duties. In 1994 he received a one-year Fulbright scholarship to the University of Vermont, U.S.A., and became a member of the Department of Animal and Food Science and conducted research on listeria. On return he resumed his undergraduate and postgraduate teaching in food hygiene, zoonotic diseases and impact of animal diseases and production management practices on food safety and quality. Prof. Arimi has participated in many research projects and supervised graduate students on brucellosis and other studies. He has published 43 research papers in refereed journals. In 1998 - 2002, he was one of the key players in the smallholder dairy project in the high potential dairy areas of Kenya funded by DFID, which looked, among other things, at the risk of transmission of brucellosis and E. coli O157: H7 through consumption of raw milk. In appreciation of good team work, he received the Neville Clarke Award for outstanding teamwork in 2002. In 2009, he was awarded the Veterinary Research Award by the Kenya Veterinary Board and Kenya Veterinary Association in recognition of exemplary contribution to veterinary profession and community through outstanding veterinary research. Prof. Arimi is a member of the Fulbright Scholars alumni, Kenya Veterinary Association and Kenya Veterinary Board. Since 1990, Prof Arimi has been a member of the departmental committee on postgraduate studies, Head of the Public Health section of the Department (1994 – 1997, 2008), member of the Faculty Biennial Scientific Conference Organizing Committee (2004 to date) and acting Chairman of the department on many occasions since 1989.