Face masks is just a reduction in area of danger perhaps, its a bit similar to 6 feet distance rule. Doesnt mean it works and both measures are minor to the main risk of catching it on hands and/or mucous membrane which is the eye nose mouth, thats the big one so far as I know.
and actually we are mostly discussed and advice to keep distance or wearing mask because it can enter our Eyes,Nose and Mouth but what we are being denied for understanding is the virus can also enter in open wounds and also in Open pimples so the risk is always there if we don't know how can we infected.
Russia developing a cure especially well would be a surprise, good for them if they can do it but Im not sure I trust their testing process to avoid apparent risks in the process. Worst thing is to make a vaccine that causes problems to some then you will never hear the end of the anti vax movement that are currently mostly idiots.
The whole world are developing the cure though it seems that russia is the most closer to finding one,and our government as well is waiting for russian development .