My answer: This is a very tough question for all of us – and me especially! I am torn between a number of different people for my answer, but finally, at a push, I have chosen Alexander Fleming. It was he who discovered penicillin, for which he won a shared Nobel Prize in Physiology or Medicine. How many countless millions of people have had their lives saved by his discovery? How many numerous diseases have been wiped out? I was tempted to pick Louis Pasteur for his earlier work in microbiotics, but he lost out because his method of pasteurization prevents me from getting great unpasteurized cheese in New Zealand!
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