Paul Barrow is a visiting professor at the University of Surrey, Guildford, UK, having retired from the University of Nottingham, where he was professor of veterinary infectious diseases and research director at the School of Veterinary Medicine and Science. He trained as a medical microbiologist at the University of Bristol and spent 25 years in government research at the Houghton Poultry Research Station and the Institute for Animal Health as head of zoonoses research before moving to Nottingham University. His main areas of expertise are enteric bacterial infections in poultry and pigs and the use of bacteriophages for infection control, and he has an international reputation in poultry salmonellosis. He is a fellow of the Hungarian Academy of Sciences and associate professor at the University of Timisoara, Romania. He has extensive collaborative contacts in China and Brazil and has published more than 200 papers in peer-reviewed journals, 40 review articles, and 4 books.