MEDICAL BREAKTHROUGHS of the decade surely do include the Human Genome and stem cells whose impact is yet to come. But reflect on this: it is unlikely any single breakthrough now or in the future will have the enormous public health impact of the invention of the sewage system, vaccinations, and penicillin. The sewage system alone probably trumps all others in terms of lives saved. In our lives today, clean global drinking water is the new sewage system challenge. Solve that and save millions of lives. That is worth a Nobel.
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