Inoculating a patient, Paris, c 1909.
© Science Museum / Science & Society Picture Library
Doctors at the L'Institut Pasteur in Paris, inoculating a woman patient. Plate taken from 'Lectures Pour Tous Revue Universelle Illustree' (1909). French chemist Louis Pasteur (1822-1895) invented and developed the pasteurisation proces which kills pathogens in milk, wine and foods, and he also produced vaccines against anthrax and rabies. In 1884 he was appointed Profesor of Chemistry at the University of Lille where he researched the reasons why some alcohols turn sour; discovering that bacteria in liquid was killed by heating.