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Jeffrey Shaman returns to TWiV to explain how epidemiologists measure SARS-CoV-2 movement among humans, including calculation of the reproductive index, secondary transmission, and what factors affect transmission.
Hosts:\\xa0Vincent Racaniello, Kathy Spindler, and Brianne Barker
Guest: Jeffrey Shaman
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Brianne \\u2013 The Social Lives of Giraffes
Kathy \\u2013 Saturn\\u2019s Iapetus, moon in 3-D
Vincent \\u2013 Arkansas Governor Wants To Reverse A Law That Forbids Schools To Require Masks
Intro music is by\\xa0Ronald Jenkees
Send your virology questions and comments to twiv@microbe.tv