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Frontiers Face Masks During the COVID-19 Pandemic: A Simple Protection Tool With Many Meanings
Face masks are 'less effective in the rain
Face Coverings Rebecca Harris
Coronavirus: Hospitals Are Losing the Covid-19 Battle - Bloomberg
Brazil Passes 1 Million Coronavirus Cases, Adding 54,000 in a Day - The New York Times
COVID-19 pandemic in Hong Kong - Wikipedia
Face masks don't work in the rain, health experts warn ahead of Autumn showers - Daily Star
Face masks may not protect against coronavirus in rain, say WHO and PHE
The Future of the Metaverse, Imagining the Internet
When and how to use masks