Can we cultivate germs? - Paul Ewald
Feb 17, 2026•24 min
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Episode description
View full lesson: http://ed.ted.com/lessons/can-we-domesticate-germs-paul-ewald
Evolutionary biologist Paul Ewald drags us into the sewer to discuss germs. Why are some more harmful than others? How could we make the harmful ones benign? Searching for answers, he examines a disgusting, fascinating case: diarrhea.
Talk by Paul Ewald.
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