Evidence shows that, yes, masks prevent COVID-19 – and surgical masks are the way to go

Since the coronaviurs first began spreading around the globe, people have debated how effective masks are at preventing COVID-19. A year and a half in, what does the evidence show?

Laura (Layla) H. Kwong, Assistant Professor of Environmental Health Sciences, University of California, Berkeley • conversation
Sept. 22, 2021 • ~8 min

Coronavirus: South Korea’s success in controlling disease is due to its acceptance of surveillance

South Korea's COVID-19 testing programme relies on what many would call privacy invasions.

Jung Won Sonn, Associate Professor in Urban Economic Development, UCL • conversation
March 19, 2020 • ~7 min

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