Understanding the spread of COVID-19
Two experts talk about their research on detecting COVID-19 in the environment and how respiratory viruses like influenza spread and COVID-19 spread between people.
Professor Frank Kelly
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https://www.youtube.com/watch?v=r5VePrEMMScProfessor Wendy Barclay
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https://www.youtube.com/watch?v=d0KS1L-jOdo