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Timeline of face masks

200 bytes removed, 08:21, 19 September 2020
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| 1929 || || || During a meningitis outbreak in China, the government encourages citizens to use masks and avoid public gatherings.<ref name="sixthtone.comt"/> || {{w|China}}
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| 1930 || || || "Additional data confirming the value of face masks in preventing infection of surgical wounds were published by Walker in 1930. by Meleney in 1935. and by Hart and Davis” in 1937"<ref name="Spooner"/> |||-| 1930 || || || "Additional data confirming the value of face masks in preventing infection of surgical wounds were published by Walker in 1930. by Meleney in 1935. and by Hart and Davis” in 1937"<ref name="Spooner"/> |||-| 1930 || || || "Additional publishes data confirming the value of face masks in preventing infection of surgical wounds were published by Walker in 1930. by Meleney in 1935. and by Hart and Davis” in 1937"<ref name="Spooner"/> ||
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| 1934 || || || ". The influenza epidemic in 1934 triggered a different relationship with masks for the Japanese, that of social courtesy. Infected people were conscientious about not passing on germs to others, and masks were no longer only worn by healthy individuals trying to avoid illness."<ref name="indiabioscience.orges"/> ||
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| 1935 || || || Facemasks are mentiones 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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| 1937 || || || Study by Hart and Davis confirms the value of face masks in preventing infection of surgical wounds.<ref name="Spooner"/><ref name="Spooner"/> ||
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| 1948–1950 || || || After a period of decline since the end of the Spanish flu, the use of face masks quickly becomes common again during several major flu outbreaks around this time.<ref name="sciencenorway.no">{{cite web |title=Face masks: Why do different countries in the world have such different recommendations? |url=https://sciencenorway.no/cultural-history-disease-health/face-masks-why-do-different-countries-in-the-world-have-such-different-recommendations/1689385 |website=sciencenorway.no |accessdate=11 September 2020}}</ref> ||
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