[irq11]

You will not be protected from influenza and common cold. All prior literature on masks and these viruses have found little/no effect.

Moreover: “mask-wearing countries” like Japan, Korea and China have plenty of cold and flu to go around.

[jrnichols]

Japan in particular had a record breaking flu season in 2019.

Millions of flu cases.

https://www3.nhk.or.jp/nhkworld/en/news/backstories/370/