Key Facts:
Pasteur published his Germ Theory in 1861, proving germs caused decay.
He investigated why beer was going bad as a brewery in France. He proved it was micro-organisms
or "germs" as he called them that were causing it.
He proved germs could be killed by heating the beer - a method called pasteurisation.
He suggested that germs caused human disease.
In the 1870's Pasteur was backed by the French government, going on to find vaccinations for
different diseases such as chicken cholera.
His germ theory is seen as the greatest medical breakthrough of all time.
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