CDC Recommends Double Masking to Help Slow Covid-19 Spread

Bloomberg Quicktake: Now published this video item, entitled “CDC Recommends Double Masking to Help Slow Covid-19 Spread” – below is their description.

The U.S. Centers for Disease Control and Prevention Wednesday began recommending that Americans wear a cloth mask over a medical mask to slow the spread of Covid-19, along with other options to improve mask fit.

The guidance followed the release of an agency study that found double masking can boost protection from aerosolized particles. Government officials have previously said the CDC was waiting to gather evidence on double masking.

Americans should ensure that masks fit tightly on their face and have layers, both of which improve protection, the agency’s guidance says.

There are several routes to do that, including wearing a disposable mask beneath a cloth mask or choosing a mask with multiple layers of fabric, according to the recommendation. Double-masking with two disposable masks, or with a KN95, isn’t recommended.

“The bottom line is this: Masks work and they work best when they have a good fit and are worn correctly,” CDC Director Rochelle Walensky said at a White House briefing on Wednesday.

The new study, part of the agency’s Morbidity and Mortality Weekly Report, also examined the efficacy of modifications made to improve the fit of a medical mask.

Either double masking or tightening a mask’s fit reduced exposure to aerosols that could be infectious by about 95%, the research concluded.

“These experiments highlight the importance of good fit to maximize mask performance,” the authors wrote. “There are multiple simple ways to achieve better fit of masks to more effectively slow the spread of Covid-19.”

The findings came from experiments done by the agency last month, which tested how double masking and changes to improve mask fit worked amid coughing, which the researchers simulated.

Knotting the loops of a surgical mask and tucking in extra fabric near the face was found to reduce exposure, as was wearing a cloth mask over a surgical mask.

Surgical masks are designed to ensure a surgical field stays sterile and have became widely worn outside of hospitals during the pandemic. Their protection, however, can be limited by a loose fit like gaps around the sides of the face, the CDC study said.

The authors noted that the findings don’t necessarily translate to a real-world setting. Another key caveat is that the experiments didn’t test other double-masking combinations, such as two cloth masks worn together, they said.

Bloomberg Quicktake: Now YouTube Channel

Got a comment? Leave your thoughts in the comments section, below. Please note comments are moderated before publication.

About This Source - Bloomberg QuickTake: Now

Bloomberg L.P. is a privately held financial, software, data, and media company headquartered in Midtown Manhattan, New York City.

It was founded by Michael Bloomberg in 1981, with the help of Thomas Secunda, Duncan MacMillan, Charles Zegar, and a 12% ownership investment by Merrill Lynch.

Recent from Bloomberg QuickTake: Now:

  • Can a Nonprofit Disrupt the Pricey Prison Phone Industry?
  • Border Agents Seen Chasing Migrants on Horseback Put on Leave: Mayorkas
  • Mayorkas: No Migrants Remain Under Bridge at Texas Border Camp
  • In This Story: COVID-19

    Covid-19 is the official WHO name given to the novel coronavirus which broke out in late 2019 and began to spread in the early months of 2020.

    Symptoms of coronavirus

    The main symptoms of coronavirus are:

    • a persistent new cough (non productive, dry)
    • a high temperature (e.g. head feels warm to the touch)
    • shortness of breath (if this is abnormal for the individual, or increased)

    Latest News about Covid-19

    Below are stories from around the globe related to the 2020 outbreak of novel Coronavirus – since the WHO gave the Covid-19 naming. Most recent items are posted nearest the top.

    5 Recent Items: COVID-19

  • ‘Gen Z’ Thai protesters and police blame each other for violence at key Bangkok intersection
  • Fears AFL grand final will trigger super spreading event | Coronavirus | 9 News Australia
  • NSW reaches 85 per cent first dose as vaccine hesitancy hits all time low | 7NEWS
  • New fears of COVID superspreader event after Bondi Beach party | 7NEWS
  • NSW closes in on 60 per cent fully vaccinated | Coronavirus | 9 News Australia
  • Leave a Comment

    We don't require your email address now, just your name. BUT, if you do add it, you may be notified if there are replies to your comment. Please make respectful comments, which add value, and avoid personal attacks on others. Comments failing to adhere to these guidelines will not be published.