
nature
Stats + related links for Respiratory virus shedding in exhaled breath and efficacy of face masks
A study of 246 individuals with seasonal respiratory virus infections randomized to wear or not wear a surgical face mask showed that masks can significantly reduce detection of coronavirus and…
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nature
Face masks: what the data say
nature
~12 min read · 2020-10-06 · The science supports that face coverings save lives, and yet the debate trundles on. How much evidence is enough?
Reader View · Shared by 340, including Frank Luntz, ɪᴀɴ ᴍ. ᴍᴀᴄᴋᴀʏ, ᴘʜᴅ 🦠🤧🧬🥼🦟, Amy Cuddy, PhD, Alberto Cairo, Evan Kirstel the $B2B Techfluencer, Krutika Kuppalli, MD FIDSA, Megan Ranney MD MPH 🌻, George J Huba PhD, TVMoJoe, David Leonhardt, Carlos del Rio, Gabriel Leung, Mathieu von Rohr, Dr. Alec Couros, davidabrock, Esther C, MD MPH, Gregg Gonsalves, Steven Sinofsky, Eric Topol, Taylor Lorenz
The Verge
Face masks are breaking facial recognition algorithms, says new government study
The Verge
4 min read · From 2020 · If you’re worried about mass surveillance, here’s another reason to wear a face mask
Reader View · Shared by 141, including @nonprofitorgs / Nonprofit Tech for Good, Merkstatt, Jameson Lopp, Nicolas Babin, DHH, Bob E. Hayes, Mark Tabladillo PhD, luis antónio santos, Vishal Gulati (I back scientists)
VANITY FAIR
If 80% of Americans Wore Masks, COVID-19 Infections Would Plummet, New Study Says
VANITY FAIR
3 min read · From 2020 · There’s compelling evidence that Japan, Hong Kong, and other East Asian locales are doing it right and we should really, truly mask up—fast.
Reader View · Shared by 237, including Christopher Mims 🤌, Tiffany Shlain, David Wallace-Wells, Keith Rabois, Evan Kirstel the $B2B Techfluencer, Steven Sinofsky, Bob Sutton, Emmy van Deurzen☀️🌍 🌻🌹🌳🇪🇺🇫🇷🇳🇱🇬🇧🇺🇸⭐️, Douglas Karr, Marshall Shepherd, Mike Rundle, Joshua Benton, Mathew Ingram, John Maeda, Ser Jeff Garzik, Frank Gruber, Dion Almaer, Tom Raftery 🇮🇪🇪🇸🇪🇺🇺🇦💉💉💉, William Gibson, Carla Gentry
The Atlantic
Everyone Thinks They’re Right About Masks
The Atlantic
~13 min read · From 2020 · How the coronavirus travels through the air has become one of the most divisive debates in this pandemic.
Reader View · Shared by 225, including Joshua Benton, Nassim Nicholas Taleb, m, Steven Sinofsky, Julia Belluz, Nando 💪🇦🇺🇦🇷, Bill Hanage, Mathew Ingram, Denise Silber - Doctors 2.0 - VRforHealth, Jane, Susannah Fox, Alice Wong 王美華, Helen Branswell 🇺🇦, Brian D. Earp, Ph.D., Brian Resnick, Ed Yong, Balaji Srinivasan, Adrienne Fichter, Ben Cowling, Guy Kawasaki
Quartz
Frustration grows in China as face masks compromise facial recognition
Quartz
2 min read · From 2020 · Facial recognition technology is essential to daily life in China, on a scale beyond than other nations.
Reader View · Shared by 116, including Desmond Williams, Brian D. Earp, Ph.D., Jameson Lopp, Chris Gledhill | gledhill.eth, Azeem Azhar, Jeff Nolan 🇺🇸🚀, Mars Rebello, Mark Little, MIT Press, Samuel Hu
medium.com
COVID-19: WHY WE SHOULD ALL WEAR MASKS — THERE IS NEW SCIENTIFIC RATIONALE
medium.com
~16 min read · From 2020 · The official recommendation in the United States (and other Western countries) that the public should not wear face masks was motivated by…
Reader View · Shared by 157, including Ward Plunet, ploum.net, Noah Smith 🐇🇺🇦, K. Williams, Charlie Lee Ⓜ️🕸️, Nils Hitze, Hampus Jakobsson, Mark Little, SusanaDeLeón, MD, Tuur Demeester, zeynep tufekci, Vikram Dutt, Dr. Nettra Pan 🦇🔊 #w3ready, Ser Jeff Garzik
Scientific American
Why We Need to Upgrade Our Face Masks—and Where to Get Them
Scientific American
7 min read · 2021-10-01 · High-quality respirators such as N95s and K95s are now widely available and provide the best protection against COVID, according to experts. Why aren’t more people wearing them?
Reader View · Shared by 80, including Dr. Kiki Sanford, ɪᴀɴ ᴍ. ᴍᴀᴄᴋᴀʏ, ᴘʜᴅ 🦠🤧🧬🥼🦟, Gregg Gonsalves, Eric Topol, Marsha Collier, Nicolas Babin, David Fisman, Anita Leirfall
PNASNews
An evidence review of face masks against COVID-19
PNASNews
2021-01-11 · The science around the use of masks by the public to impede COVID-19 transmission is advancing rapidly. In this narrative review, we develop an analytical framework to examine mask usage, synthesizing the relevant literature to inform multiple areas: population impact, transmission characteristics, source control, wearer protection, sociological considerations, and implementation considerations. A primary route of transmission of COVID-19 is via respiratory particles, and it is known to be transmissible from presymptomatic, paucisymptomatic, and asymptomatic individuals. Reducing disease spread requires two things: limiting contacts of infected individuals via physical distancing and other measures and reducing the transmission probability per contact. The preponderance of evidence indicates that mask wearing reduces transmissibility per contact by reducing transmission of infected respiratory particles in both laboratory and clinical contexts. Public mask wearing is most effective at reducing spread of the virus when compliance is high. Given the current shortages of medical masks, we recommend the adoption of public cloth mask wearing, as an effective form of source control, in conjunction with existing hygiene, distancing, and contact tracing strategies. Because many respiratory particles become smaller due to evaporation, we recommend increasing focus on a previously overlooked aspect of mask usage: mask wearing by infectious people (“source control”) with benefits at the population level, rather than only mask wearing by susceptible people, such as health care workers, with focus on individual outcomes. We recommend that public officials and governments strongly encourage the use of widespread face masks in public, including the use of appropriate regulation.
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PNASNews
Face masks considerably reduce COVID-19 cases in Germany
PNASNews
2020-12-03 · Mitigating the spread of COVID-19 is the objective of most governments. It is of utmost importance to understand how effective various public health measures are. We study the effectiveness of face masks. We employ public regional data about reported severe acute respiratory syndrome coronavirus 2 infections for Germany. As face masks became mandatory at different points in time across German regions, we can compare the rise in infections in regions with masks and regions without masks. Weighing various estimates, we conclude that 20 d after becoming mandatory face masks have reduced the number of new infections by around 45%. As economic costs are close to zero compared to other public health measures, masks seem to be a cost-effective means to combat COVID-19.
We use the synthetic control method to analyze the effect of face masks on the spread of COVID-19 in Germany. Our identification approach exploits regional variation in the point in time when wearing of face masks became mandatory in public transport and shops. Depending on the region we consider, we find that face masks reduced the number of newly registered severe acute respiratory syndrome coronavirus 2 infections between 15% and 75% over a period of 20 days after their mandatory introduction. Assessing the credibility of the various estimates, we conclude that face masks reduce the daily growth rate of reported infections by around 47%.
Public health data have been deposited in FigShare (<https://doi.org/10.6084/m9.figshare.13065920>). All study data are included in the paper and [ SI Appendix ][1].
[1]: https://www.pnas.org/lookup/suppl/doi:10.1073/pnas.2015954117/-/DCSupplemental
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