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#74 – Dr Greg Lewis on COVID-19 & catastrophic biological risks

80,000 Hours Podcast

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Understanding COVID-19: Origins and Transmission

This chapter explores the origins of COVID-19 as a zoonotic disease, detailing its emergence in Wuhan in late 2019 and the genetic evidence linking it to bats and pangolins. It examines the transmission dynamics, the varied severity of illness among infected individuals, and challenges in determining accurate fatality rates influenced by health systems and underlying conditions. The discussion also compares COVID-19 to historical pandemics and emphasizes the public health implications of asymptomatic cases on containment strategies.

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