jimmy m wrote:
A homemade mask or a surgical mask is not as protective as an N95, but it can serve two important purposes. It can reduce the R0, how many people are infected by another individual. If the mask reduces the viral particles being dispersed by the asymptomatic or the not-quite symptomatic by one or two persons, the R0 is reduced by a third or more. Second, it may reduce the amount of virus transmitted, and there is some evidence, although speculative, that a reduction in viral load is associated with a more benign course. There is little downside to wearing a mask when you venture out of your home, and there is the real possibility of an upside benefit, to you and your neighbors.
This is what I have been saying.
I think it should be mandatory for everyone to wear *some* sort of mask, even if it is only a bandana.
Personal responsibility.
Many Asian countries do this without thinking about it.
It is time western societies wake up to themselves.
And yes, "virus load" seems to me to be an important consideration.
It probably explains the severity of problems first-line workers seem to have, in abundance.