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COVID-19: Without Masks, Two Metres Distancing is Not Enough

posted by martyb on Wednesday October 06 2021, @04:12PM   Printer-friendly

upstart writes:

COVID-19: Without masks, two metres distancing is not enough:

To prevent the spread of COVID-19 indoors, the two metres physical distancing guideline is not enough without masks, according to researchers from Quebec, Illinois, and Texas. However, wearing a mask indoors can reduce the contamination range of airborne particles by about 67 percent.

“Mask mandates and good ventilation are critically important to curb the spread of more contagious strains of COVID-19, especially during the flu season and winter months as more people socialize indoors,” says Saad Akhtar, a former doctoral student under the supervision of Professor Agus Sasmito at McGill University.

While most public health guidelines recommend physical distancing of two metres for people from different households, the researchers say distancing alone is not enough to prevent the spread of COVID-19. In a study published in Building and Environment, the researchers found that when people are unmasked, more than 70 percent of airborne particles pass the two metres threshold within the 30 seconds. By contrast, less than 1 percent of particles cross the two-metre mark if masks are worn.

Coughing is one of the main sources of spread of airborne viruses from symptomatic individuals.

Journal Reference:
Jayaveera Muthusamy, Syed Haq, Saad Akhtar, et al. Implication of coughing dynamics on safe social distancing in an indoor environment—A numerical perspective Building and Environment (DOI: 10.1016/j.buildenv.2021.108280)

Original Submission

 
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  • (Score: 0) by Anonymous Coward on Thursday October 07 2021, @02:04AM

    by Anonymous Coward on Thursday October 07 2021, @02:04AM (#1185037)

    c6gunner your FAKEname's on a post impersonating me & worse is you altering /. user's words https://soylentnews.org/comments.pl?noupdate=1&sid=45117&page=1&cid=1182129#commentwrap [soylentnews.org] as I challenged you to show you do better work & you can't after you tried to mock me you hypocrite LYING loser.

    * You're online FAKENAME trash c6gunner & a childish dishonest punk!

    PUTTING WORDS IN MY MOUTH TOO saying what I don't on vaccines. I would NEVER say something so STUPID as you SHITWEASELS hide behind UNIDENTIFIABLE ANONYMOUS & post as me. You WISH you were me & that's why YOUR KIND impersonates me. You can't help you're an immature little BUTTHURT no-mind, lol! I blew you away in TONS OF PLACES and easily dust your no-mind bullshit blatherings. You only post MISINFORMATION & impersonate me because you KNOW NOTHING about tech. PROVE you've done better than I. You'll just DOWNMOD HIDE my post AGAIN & "Run, Forrest: RUN!!!" instead of SHOWING US YOUR WORK.

    UNBELIEVABLE how far you LOWLIFE weezils will go. Impersonating me after ALL these years you "ne'er-do-well" FAKENAME FUCK. I got FULLY VACCINATED w/ Pfizer in March unlike you LOWLIFE SCUM who HIDE & IMPERSONATE because that's all YOUR KIND can do.

    APK

    P.S.=> Impossible to deny FACT of your FAKEname (for your FAKE wasted lie of a so-called life) on that link above you unbelievable pussy loser... apk