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Timeline of face masks

15 bytes removed, 10:43, 19 September 2020
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| 1930 || || || Walker publishes data confirming the value of face masks in preventing infection of surgical wounds.<ref name="Spooner"/> ||
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| 1934 || || || ". The An influenza epidemic in 1934 triggered Japan triggers a different relationship with masks for the Japanesecitizens, that of social courtesy. Infected people were become conscientious about not passing on germs to others, and masks were are no longer only worn by healthy individuals trying to avoid illness."<ref name="indiabioscience.orges"/> ||{{w|Japan}}
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| 1935 || || || Facemasks are mentiones mentioned in an edition of the book ''Assistance for operating staff''.<ref name="Fangerau"/> ||
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| 1935 || || || Study by Meleney further confirms the value of face masks in preventing infection of surgical wounds.<ref name="Spooner"/> ||<ref name="Spooner"/> ||
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| 1937 || || || During the {{w|Second Sino-Japanese War}}, face masks become essential protection against chemical and biological warfare.<ref name="sixthtone.comt">{{cite web |title=A Brief History of Face Masks in China |url=https://www.sixthtone.com/news/1005177/a-brief-history-of-face-masks-in-china |website=sixthtone.com |accessdate=18 September 2020}}</ref> || {{w|China}}
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