3 ms·

From your link, about table 6: > wearing N95 masks (0.09, 0.03 to 0.30, NNT=3, 2.37 to 4.06); NNT=3 means "number needed to treat". This means that to see the

by DanBC 7y ago

From your link, about table 6: > wearing N95 masks (0.09, 0.03 to 0.30, NNT=3, 2.37 to 4.06); NNT=3 means "number needed to treat". This means that to see the effect at all in one person you need three people to correctly wear a mask. If 99 people correctly wear an N95 mask only 33 of them have a reduced chance of catching covid-19. Here are photos of people who have correctly worn an N95 / FPP3 mask. I don't think most of the general public can tolerate this. https://twitter.com/LondonNurse2015/status/1247275055987425289 https://twitter.com/LondonNurse2015/status/12472750559874252... https://twitter.com/jbon93/status/1247626644208189444/photo/1 https://twitter.com/jbon93/status/1247626644208189444/photo/... https://twitter.com/RochesterKaren/status/1246445956515627009/photo/1 https://twitter.com/RochesterKaren/status/124644595651562700... https://twitter.com/gabbyjackson95x/status/1247939178962325505 https://twitter.com/gabbyjackson95x/status/12479391789623255... We also know that "doffing" (taking off) the PPE is difficult, and that many healthcare professionals are infected when they take it off. I don't think most members of the public can comply with the complicated donning and doffing protocols.

jnbiche 7y ago
You need to look into that first one. It's obviously photoshopped. The originals are uncomfortable, but not like that. Here's one of the originals: https://twitter.com/error4null1/status/1241896271927009281/photo/1 https://twitter.com/error4null1/status/1241896271927009281/p... More importantly, the imprints and bruises are from full-mask respirators and goggles (and one FPP3 mask), not N95 masks. Have you ever worn one (and been fitted for one)? I have, when I worked as an EMT years ago. I also have worn one N99 or N95 mask for years when cleaning out my guinea pig cages. It's not that bad. In terms of doffing the masks, it's pretty straight-forward: To remove the mask: remove it from behind (do not touch the front of mask); discard immediately in a closed bin; clean hands with alcohol-based hand rub or soap and water (via WHO). I'm not sure what's driving your passionate anti-mask campaign (N95 and otherwise), but I urge you to look into what doctors and public health experts have started recommending after considering the evidence and what we know about how this infection is spreading: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/cloth-face-cover.html https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-si... (US CDC) https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/diy-cloth-face-coverings.html https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-si... https://www.ucsfhealth.org/education/should-i-wear-a-mask-to-protect-against-the-coronavirus https://www.ucsfhealth.org/education/should-i-wear-a-mask-to... (UCSF) http://www.chinacdc.cn/en/COVID19/202002/P020200310326809462942.pdf http://www.chinacdc.cn/en/COVID19/202002/P020200310326809462... (Chinese Centers for Disease Control - "Wear a mask when going out.") Absolutely stay home if you can. It's the most effective way to avoid spreading or contracting Covid-19. But wear a mask if/when you must go out (to grocery store, drugstore, essential job, etc).

by DanBC 7y ago

jnbiche 7y ago

You need to look into that first one. It's obviously photoshopped. The originals are uncomfortable, but not like that. Here's one of the originals: https://twitter.com/error4null1/status/1241896271927009281/photo/1 https://twitter.com/error4null1/status/1241896271927009281/p... More importantly, the imprints and bruises are from full-mask respirators and goggles (and one FPP3 mask), not N95 masks. Have you ever worn one (and been fitted for one)? I have, when I worked as an EMT years ago. I also have worn one N99 or N95 mask for years when cleaning out my guinea pig cages. It's not that bad. In terms of doffing the masks, it's pretty straight-forward: To remove the mask: remove it from behind (do not touch the front of mask); discard immediately in a closed bin; clean hands with alcohol-based hand rub or soap and water (via WHO). I'm not sure what's driving your passionate anti-mask campaign (N95 and otherwise), but I urge you to look into what doctors and public health experts have started recommending after considering the evidence and what we know about how this infection is spreading: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/cloth-face-cover.html https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-si... (US CDC) https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/diy-cloth-face-coverings.html https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-si... https://www.ucsfhealth.org/education/should-i-wear-a-mask-to-protect-against-the-coronavirus https://www.ucsfhealth.org/education/should-i-wear-a-mask-to... (UCSF) http://www.chinacdc.cn/en/COVID19/202002/P020200310326809462942.pdf http://www.chinacdc.cn/en/COVID19/202002/P020200310326809462... (Chinese Centers for Disease Control - "Wear a mask when going out.") Absolutely stay home if you can. It's the most effective way to avoid spreading or contracting Covid-19. But wear a mask if/when you must go out (to grocery store, drugstore, essential job, etc).