Axel Kornerup Hansen graduated in 1985 as DVM from the Royal Veterinary and Agricultural University in Copenhagen, Denmark. After two years in a small animal hospital, he became head of laboratories at Møllegaard Breeding Center, today part of Taconic Ltd. In 1993 he became associate director at the Department of Experimental Medicine at the Faculty of Health & Medical Sciences at the University of Copenhagen. In 1996 he was awarded the degree of Dr. Vet. Sci. based upon his thesis on the impact of bacteria in laboratory rats. From 1997 he has been professor in laboratory animal science and welfare at the Royal Veterinary and Agricultural University and from 2007 at the University of Copenhagen. In 2000 he was made charter diplomat and was together with six others founding the European College of Laboratory Animal Medicine. His research area has primarily been on how the microbiota has an impact on laboratory animal models for inflammatory diseases and how this works in conjunction with the diet. He has published 152 original and 36 review peer-reviewed papers in scientific journals, 20 proceedings papers, 17 papers in non-peer journals, and two full textbooks, including ‘Handbook of Laboratory Animal Bacteriology’ from CRC Press.