The particle/droplet argument for wearing masks is only valid if it takes an aggregate of exposure to infect. Since it only takes a single virus strand ( or whatever it’s called) to infect and the virus is airborne, none of the masks the public wear a is effective.

More than that the principle being established is wrong and the same basis some political systems use to compel burkas.

quote:

Originally posted by darthfuster:
The particle/droplet argument for wearing masks is only valid if it takes an aggregate of exposure to infect. Since it only takes a single virus strand ( or whatever it’s called) to infect and the virus is airborne, none of the masks the public wear a is effective.

While theoretically true, that is not accurate in the real world. Viral dose makes a HUGE difference in the likelihood of becoming ill. That is true of all pathogens, not just Covid.

quote:

Originally posted by darthfuster:
Since it only takes a single virus strand ( or whatever it’s called) to infect and the virus is airborne, ...

The amount and concentration of a virus in an environment directly affects the likelihood of infection. The question is not whether masks, or a particular mask, reduces that, but whether they reduce it sufficiently to appreciably decrease exposure.