If you remember to wash your hands frequently, cover your mouth when you cough, and wipe down surfaces, you still couldn't eliminate all the germs surrounding you on a daily basis. Worse yet, at some point in your life you'll be susceptible to a virus that could possibly kill you. Today, we're Thinking Aloud about viruses--from the common flu to history making pandemics. Our guest, Brent Johnson, teaches in the BYU Department of Microbiology and Molecular Biology—Original airdate: 5/13/2009



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