Louis Pasteur was born in 1822 in Dole, France. Louis Pasteur’s name is forever cemented in the history of medicine. He, along with Alexander Fleming, Edward Jenner, Robert Koch and Joseph Lister, is of great importance when studying medical history. Pasteur’s discovery – that of germs – may seem reasonably tame by the standards of 2002, but his discovery was to transform medicine and see his name forever immortalised on a day-to-day basis in pasteurised milk – named in his honour.