The tour followed the morning speech that kicked off his three-day college speaking tour.
Bill Gates at Berkeley (photos)
by CNET News.com | April 19, 2010, 5:10pm PDT | Image 1 of 4
Bill Gates talks with UC Berkeley professor Dan Portnoy as he tours Portnoy's biology lab. Portnoy's research looks at the listeria bacteria and how the immune system interacts with it, a subject that has implications for vaccine creation.
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