Their previous arguments that Chinavirus spreads through respiratory droplets when a person coughs, talks or sneezes gave them the argument that wearing a mask can protect others.
Since the virus can be entirely airborne it means that no respiratory droplet is needed and that any PPE that isn't approved for biolab use does absolutely nothing. If it lets air in or out it is entirely useless. That would mean plastic dividers and all of those other things do nothing at all.
Am I understanding this correctly?
Source: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/how-covid-spreads.html
CNN (archived): https://archive.is/5kNMU
Edit: CDC NOW REMOVED THIS AND IS GOING BACK ON IT SAYING THEY POSTED A DRAFT ON ACCIDENT
This is the U. of Minnesota center for disease research. Has been saying this for months.
https://www.cidrap.umn.edu/news-perspective/2020/04/commentary-masks-all-covid-19-not-based-sound-data
My summary... The new research claiming masks do any good against viruses is flawed. We have a hundred years of actual research showing that masks for viruses don't work at best and harm at worst. Oh, and we're putting in here that we support mask mandates (of the masks that we also say are ineffective) so we don't get protested and we are sponsored by 3m.