Physicians that changed our world

Edward Jenner ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],He noticed that the girls who milked the cows often caught cowpox, (a disease similar to smallpox, but much less virulent), but they rarely caught smallpox.

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[object Object],[object Object],[object Object],[object Object],Two months later Jenner scratched pus from a smallpox victim into James's arm. The little boy showed no signs at all of the terrible infection

[object Object],Interestingly, Jenner's work would not be allowed today – it would be completely unethical to use a healthy child in an experiment in this way!

Ignaz Semmelweiss and the spread of infection ,[object Object],[object Object],Nobody really understood why this was happening

Ignaz Semmelweiss (1818) was a Hungarian doctor who worked in the maternity clinic at the Vienna Hospital ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],Semmelweiss was convinced that the fever was caused by an infectious agent. He insisted that the medical students wash their hands in chlorinated lime before they went onto the maternity ward.

John Snow, a historical giant in epidemiology ,[object Object],[object Object]

[object Object],[object Object],At the time, it was assumed that cholera was airborne. In fact, a famous doctor of the time, Dr. William Farr supported this idea. However, Snow did not accept this 'miasma' (bad air) theory, arguing that in fact entered the body through the mouth

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Joseph Lister and antiseptic surgery ,[object Object],[object Object],[object Object]

Alexander Fleming and the discovery of penicillin ,[object Object],[object Object],This mistake has saved millions of lives

[object Object],[object Object],bacteria mould Bacteria don’t grow in this area

[object Object],[object Object],In 1938 Howard Florey and Ernst Chain at Oxford University decided to do some work on penicillin. They infected eight mice with bacteria which would normally kill them. Four were given penicillin. The four treated mice stayed healthy – but the other four died. After several experiments on persons, they showed the value of penicillin in destroying bacteria .

Physicians that changed our world

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Physicians that changed our world