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Coronavirus: How Masks Can Limit the Spread – NHK Documentary

Learn more on the full documentary on NHK WORLD-JAPAN.
https://www3.nhk.or.jp/nhkworld/en/ondemand/video/5001289/?cid=wohk-yt-2003-corona02-hp
Watch more quality content on NHK WORLD-JAPAN.
https://www3.nhk.or.jp/nhkworld/en/ondemand/video/?cid=wohk-yt-2003-corona02-hp

Just how effective are masks in preventing the coronavirus from spreading? An NHK experiment shows how they hold up.

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