The World Organisation for Animal Health (OIE) is supported by a number of Specialist Commissions whose role is to use current scientific information to study problems of epidemiology and the prevention and control of animal diseases, to develop and revise OIE's international standards and to address scientific and technical issues raised by Members. These include the OIE Biological Standards Commission (BSC), which is concerned with developing internationally agreed standards for laboratory diagnostic tests and vaccines for OIE-listed animal diseases of mammals, birds and bees. The BSC meeting reports, including the latest one from 17-20 September 2019, are available in English, French and Spanish at [www.oie.int]