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Sir. William Harvey Robert Koch. Joseph Lister
was an English scientist. Heinrich Hermann Rob- was a British surgeon.
He was the first scientist ert Koch was a German He discovered antiseptic
to discover that blood scientist. He discovered which prevents wounds
circulates around the the bacteria which caus- from becoming septic.
es anthrax and tubercu-
losis.
Sir Ronald Ross Sir Alexander Fleming
was a British medical was a Scottish scientist.
doctor. He was the first He discovered an antibi-
to discover the cause of otic called Penicillin
