Plexiglass separators were a reasonable precaution in the days back when the mainstream view was that the disease was spread mostly by large droplets that mostly fell within seconds. They seem less useful in these days when nearly everyone gives higher credence to primarily aerosol spread.
That said, we still don’t have great data on how easily COVID spreads in practice through various transmission routes. Maybe they do significantly reduce probability of transmission after all.
There’s fairly decent, real-world evidence that covid spreads almost exclusively by aerosols. There doesn’t seem to be much outdoor transmission, and that rules out direct droplet transmission. There’s nearly zero evidence for fomite transmission. Also, indoor transmission seems to be required for transmission. All of that (and more) points to aerosols.
Plexiglass separators were a reasonable precaution in the days back when the mainstream view was that the disease was spread mostly by large droplets that mostly fell within seconds. They seem less useful in these days when nearly everyone gives higher credence to primarily aerosol spread.
That said, we still don’t have great data on how easily COVID spreads in practice through various transmission routes. Maybe they do significantly reduce probability of transmission after all.
There’s fairly decent, real-world evidence that covid spreads almost exclusively by aerosols. There doesn’t seem to be much outdoor transmission, and that rules out direct droplet transmission. There’s nearly zero evidence for fomite transmission. Also, indoor transmission seems to be required for transmission. All of that (and more) points to aerosols.