ak> As I told before, healthy people don't cough and sneeze. As well as
ak> infected people without symptoms, who are the main virus conductor.
ak> They emit virus with masks or without them.
ak> All the world practice shows that if the medics worked (with infected
ak> people) wearing simple medical masks -- they have been infected very
ak> often -- the best proof of the mask uselessness. A usual medical mask
ak> don't save from the covid19 contamination. Such masks should be worn
ak> only by sick people with cough and sneeze.
 
It's amazing how people who 2 months ago were leading experts on CO2 emissions,
are now leading experts on virus contamination and fighting.
 
 \%/@rd

--- D'Bridge 4