Science and medicine

.............were first introduced by the scientist Dr Edward Jenner, who prevented a boy from getting smallpox in ................

Anaesthetics were a dramatic scientific ................and important medical advance.

Combined with antisepsis, anaesthetics revolutionised ........and operations

Clean water and ..................had a major role in the prevention of infectious diseases.

Sir Alexander Flemin's observation of how mould killed bacteria led to the discovery of life-saving ..........in ..........

............remain one of the most effective medical tools against infections.

Essential surgery like ............and heart-lung bypasses is possible because of Roetgen's invention of radiologic imaging.