2020年5月31日日曜日

マスクの効用



マスクの効用やその賛否についてはスペイン風邪のときからあるわけで、ぐるぐる周回していて、いまどのあたりか、というと、

Photos show how San Francisco had to convince its 'mask slackers' to wear masks after many defied the law while the 1918 Spanish flu pandemic seized the city
Katie Canales May 22, 2020
Then and now, masks aren't a silver bullet in containing respiratory diseases, but they can help.



May 13, 2020 / Infectious Disease
Here’s How Wearing a Cloth Mask Helps Fight the Spread of Coronavirus
It's all about protecting others
How masks protect us

Dr. Dweik confirms that those homemade masks, often made of material like cotton, won’t do much to protect you from inhaling particles that carry the virus. But they do protect wearers from possibly spreading the virus to others.

“There is evidence that such masks reduce the exhaled aerosols from infectious, but asymptomatic, individuals.” he says. By blocking the exhale of virus particles in to the air around you, your mask is keeping the virus from spreading.


Aerosol Filtration Efficiency of Common Fabrics Used in Respiratory Cloth Masks
Abhiteja Konda, Abhinav Prakash, Gregory A. Moss, Michael Schmoldt, Gregory D. Grant, and Supratik Guha*
Cite this: ACS Nano 2020, 14, 5, 6339–6347

buveryさんがリツイート



マスクは有用、布マスクでも飛沫防止する点では有用、というのが、あのマスク嫌いのアメリカでも定着ーー一時的にせよーーしてきているんじゃないかな?

0 件のコメント:

コメントを投稿