Leslie Collier was from 1978 to 1986 Professor of Virology at the London Hospital Medical College, being succeeded in this post by John Oxford. John Oxford is Professor of Virology at St. Bartholomew's and The Royal London School of Medicine and Dentistry at the University of London. He is the co-author of two standard texts on Influenza and Virology and has published 250 scientific papers throughout the world. Professor Oxford serves as the Scientific Director of Retroscreen, Ltd., the College's research virology company.