The Pirbright Institute (formerly the Institute for Animal Health) is a research institute in Surrey, England, dedicated to the study of infectious diseases of farm animals. It forms part of the UK government's Biotechnology and Biological Sciences Research Council (BBSRC). The institute employs scientists, vets, PhD students and operations staff. History It began in 1914 to test cows for tuberculosis. More buildings were added in 1925. Compton was established by the Agricultural Research Council in 1937. Pirbright became a research institute in 1939 and Compton in 1942. The Houghton Poultry Research Station at Houghton, Cambridgeshire was established in 1948. In 1963 Pirbright became the Animal Virus Research Institute and Compton became the Institute for Research on Animal Diseases. The Neuropathogenesis Unit (NPU) was established in Edinburgh in 1981. This became part of the Roslin Institute in 2007. In 1987, Compton, Houghton and Pirbright became the Institute for Animal Health, being funded by BBSRC. Houghton closed in 1992, operations at Compton are being rapidly wound down with the site due to close in 2015. The Edward Jenner Institute for Vaccine Research was sited at Compton until October 2005. Significant investment (over £170 million) is taking place at Pirbright with the development of new world-class laboratory and animal facilities. The institute has been known as "The Pirbright Institute" since October 2012. On 14 June 2019 the largest stock of the rinderpest virus was destroyed at the Pirbright Institute. Directors of note Dr John Burns Brooksby 1964 until 1980 Structure The work previously carried out at Compton has either moved out to the university sector, ended or has been transferred to the Pirbright site. The Compton site currently carries out work on endemic (commonplace) animal diseases including some avian viruses and a small amount of bovine immunology whilst Pirbright works on exotic (unusual) animal diseases (usually caused by virus outbreaks). Pirbright has national and international reference laboratories of diseases. It is a biosafety level 4 laboratories (commonly referred to as "P4" or BSL-4). Funding 25% of its income comes from a core grant from the BBSRC of around £11m. Around 50% comes from research grants from related government organisations, such as DEFRA, or industry and charities (such as the Wellcome Trust). The remaining 25% comes from direct payments for work carried out. The Bill & Melinda Gates Foundation has provided funding to the institute for research into veterinary infectious diseases and universal flu