Professor Gary Entrican specialises in cellular immunology and the identification of immune correlates to underpin the development of vaccines and diagnostic tests to control infectious diseases of ruminant livestock. He graduated with a BSc Hons Degree in Immunology from The University of Glasgow where he also conducted his PhD in Immunology. After his PhD he took up a Post-Doctoral Research Position at The Moredun Research Institute (MRI) in Edinburgh investigating the immunological basis of pestivirus persistence in sheep. This led to the development of a first-generation monoclonal antibody-based diagnostic ELISA employed in the BVDV eradication programme in Scandinavia in the 1990s. His interests in reproductive immunology led to studies on the pathogenesis of chlamydial abortion in sheep, with the aim of identifying immunological correlates of protection to underpin vaccine development. He remained at MRI until 2019 and is now Honorary Professor at The Roslin Institute within the College of Medicine and Veterinary Medicine at The University of Edinburgh. Throughout his career he has developed immunological reagents for studying the ruminant immune system and has passionately supported the establishment of the Immunological Toolbox to advance veterinary immunology globally. He was Chair of the International Union of Immunological Societies (IUIS) Veterinary Immunology Committee (VIC) from 2013-2019 and is currently a member of the Scientific Committee of the STAR-IDAZ International Research Consortium (2017-2022). He has been very active on several Committees in the British Society for Immunology (BSI) and is currently BSI Congress Secretary (2017-2021). He is the recipient of the American Association for Veterinary Immunology (AAVI) Distinguished Veterinary Immunologist Award for 2021.