02:04Paul Ewald: Can we domesticate germs?
From the creator
http://www.ted.com 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.
Published 2008-05-12 · Watch on YouTube ↗
Availability and playback restrictions are controlled by the original channel.
