David qualified as a veterinary surgeon from the Royal Veterinary College, London in 1981 and obtained an MSc in immunology from Birmingham University in 1985. He returned to the Royal Veterinary College to gain a PhD in the field of bacterial immunity from London University in 1992. After a period in general veterinary practice and industry, David embarked on a career as a research scientist at the Pirbright Laboratory in the United Kingdom. Davidís research focussed on exotic viral diseases of livestock, particularly the epidemiology and diagnosis of vesicular diseases of livestock such as Foot-and-Mouth Disease and swine vesicular disease. David held a variety of posts at Pirbright including Head of the EU Reference Laboratory for FMD and SVD, Head of Epidemiology and ultimately Head of Laboratory. David subsequently moved into the regulatory area, assuming the posts of Head of Immunologicals and then Director of Licensing at the Veterinary Medicines Directorate in the UK. David now works at the European Medicines Agency in London as the senior veterinary advisor within the Veterinary Medicines Division. In this role David is responsible for coordinating the strategic development of the work of the division to deliver the long term of objectives of the Agency and of the wider European Medicine Regulatory Network in the field of veterinary medicines. During his career, he has published widely on epizootic diseases of livestock and on regulatory issues, particularly in relation to immunological veterinary medicinal products.