948
New Covid wave has begun and masks should be worn again, scientists warn
(www.independent.co.uk)
News from around the world!
Please only post links to actual news sources, no tabloid sites, etc
No NSFW content
No hate speech, bigotry, propaganda, etc
FWIW, they definitely do work. The issue is that it's quite hard to produce effective studies to confirm if they work one way or another to point to to say "see, we've proved they work, now put one on!"