So, perhaps while looking at this graphic, the CDC had a brilliant idea: ok, one mask does not work, but what about... two masks!

That's right: starting Wednesday, the CDC (aka the U.S. Centers for Disease Control and Prevention) began recommending that Americans wear two masks, or specifically a cloth mask over a medical mask to slow the spread of Covid-19.

The guidance followed the release of an agency study (because "scientists") that found double masking can boost protection from aerosolized particles.

Whereas government officials previously said the CDC was waiting to gather evidence on double masking, they now appear to have a greenlight to mandate double-masking. 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."