Mary Ramsay is a researcher at Public Health England. Dr Mary Ramsay obtained her medical degree at University College in London. Before joining the Health Protection Agency she held an academic post at St Mary’s Hospital Medical School in London. She became a Consultant Epidemiologist in 1994 with responsibility for the national surveillance of vaccine preventable diseases, blood-borne hepatitis and transfusion transmissible infections. Her work directly contributed to several major decisions on national vaccination policy, that, in turn have provided benefits for public health.