The @WHO , as well as more and more government are changing their tune about wearing masks to face #COVID19 . In short, if everyone wears a masks, the chances of spreading the disease by undetected and asymptomatic cases are lowered. https://www.theguardian.com/world/2020/apr/01/all-uk-hospital-staff-and-patients-should-wear-masks-says-doctors-group">https://www.theguardian.com/world/202...

Online discussions are also pushing for #mask4all https://twitter.com/BeauWillimon/status/1245396248108118017">https://twitter.com/BeauWilli...

The difference of evolution of #COVID19 in countries with widespread use of masks and those without is quite clear. https://twitter.com/bartlett_des/status/1245297406134095872">https://twitter.com/bartlett_...

- Prof David Heymann, a WHO adviser, said, “I think that wearing a mask is equally effective or more effective than distancing.”
- a 5-year study[...] has found that a simple non-fitted mask blocked 100% of coronavirus https://www.theguardian.com/commentisfree/2020/apr/04/why-wear-a-mask-may-be-our-best-weapon-to-stop-coronavirus">https://www.theguardian.com/commentis...

"A Food and Drug Administration analysis of the flu estimates that if 50% of the population uses a mask, virus transmission is reduced by half. If 80% of the population uses a mask, the virus is “essentially eliminated”." https://www.theguardian.com/commentisfree/2020/apr/04/why-wear-a-mask-may-be-our-best-weapon-to-stop-coronavirus">https://www.theguardian.com/commentis...