Study: Blue surgical face masks only 10% effective at stopping covid

The popular blue surgical face masks that have been commonly used throughout the pandemic are only 10% effective at preventing Covid infection, a new study has shown.

The study, conducted by the University of Waterloo, Canada, found that blue cloth surgical masks do not cover the face sufficiently, and were generally ineffective at preventing aerosol droplets from exiting the wearer’s mouth.

It was also found that the N95 and KN95 masks were the most effective variety of masks, as they strap tightly to the face. These were found to filter around 50% of aerosol droplets, with the other half tended to disperse over the wearer’s head.

However, the study also discovered that even moderate ventilation could produce the same results as the highest quality medical grade face masks.

US President Joe Biden’s former COVID-19 advisor, epidemiologist Michael Osterholm, warned earlier this month that “many of the face cloth coverings that people wear are not very effective.”

During a CNN interview Osterholm, who is the director of the Center for Infectious Disease Research & Policy at the University of Minnesota, asserted that N95 respirators should be used to protect against Covid-19.

‘We’re in a very unfortunate situation,” he said, adding that he believed medical spokespeople had “done a disservice to the public.”

“We’ve really brought this country to a point of confusion which really misses the main point that we should be focusing on vaccine, vaccine, vaccine.

“You know I wish we could get rid of the term masking because in fact it implies that anything you put in front of your face works. And if I could just add a nuance to that, which hopefully doesn’t add more confusion, is we know today that many of the face cloth coverings that people wear are not very effective in reducing any of the virus movement in or out.

“I’ve been really disappointed with my colleagues in public health for not being more clear about what masking can do or not do.”

 

 

 

 

 

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