Be safe. Watch out indoors. If in close contact, wear a good mask.
Two posts back shows how you can get statistical results, which you might theoretically call "evidence-based", but still incorrectly interpret the forest.
Oh, don't forget p 0.05 is 30% false positive, and these "evidence-based" studies are often meta analyses, which are tricky
It's a fascinating intersection of a field of study's established belief, a misinterpreted physical situation that provides valid stats (sometimes), practical cost requirements in hospitals, and RCTs on physical behaviour with confounders, then a layer of meta analyses.
Problem is, when challenged with evid that didn't fit, rather than making exceptions (only measles, AGMP, ppl catch at airport gates) they shld have rethought hypothesis.
People showed air for say 80 yrs, but ignored.
And droplet was never a true physical phenomenon anyway.
Letter is full of fallacies and erroneous reasoning. It gets precautionary wrong. On top of all that, it manages to sound whiny.
And it's wrong.
Each and every one will regret signing that.
Quite literally a respiratory pandemic mutating to be worse every day, everybody worried about immune escape, and these people are saying n95s in warm zones will discourage people from getting tested.
I applaud their ability to ignore the bigger picture I mean, I really do.
(Different strains in animals may yes be more transmissible. They mght bind less well to the recipient cell receptor. Or bind only to a receptor deeper in the lung. But this is observing how well, not how, they transmit.)
Side note: his comment about decreased O2 is garbage. 3% diff, small N, and the ppl had no subjective effect
I have noted he has put this in print before.
The intro suggests the harms are severe, but pulling the _citations_, which I should not have to spend my time doing, revealed that they were about acne.
He also wrote this piece on behalf of the @WHO, which was meant to support droplets, but actually proved ventilation was great because they didn't check their citations well enough.