A randomized trial with surgical masks during Covid-19 will be published soon. Here are some quotes and commentary:
> “All these countries recommending face masks haven’t made their decisions based on new studies,” Bundgaard said in an interview in Copenhagen.
> He says there’s evidence to suggest that the only effective face covering might be a visor, because the virus can spread through all mucous membranes, including via the eyes. He worries a cloth covering that only protects the nose and mouth provides a “false sense of security.”
> Bundgaard says the simple rules that currently exist in Denmark -- hand-washing, social distancing, self-isolating if you’re sick -- are effective because they’re easy to remember. He worries that using face masks might lead people to be “sloppy” in following the other guidelines.
> Bundgaard’s study on masks is due to be published next month. In the meantime, he says he hopes they don’t become mandatory in Denmark.
https://www.bloombergquint.com/onweb/face-mask-photo-op-adds...