I'm having a civilised discussion with a real life friend, through Twitter, around the efficacy of face masks. To cut a long story short, I'm vehemently against the idea the government can impose these on the people through law. He favours it because he thinks the scientific evidence is in support of them.
He has provided me with the following:
1) An article that contains links to several studies that appear to be in support of the idea that face masks protect against coronavirus
2) A study published by the Royal Society
I provided him with some links to the Lockdown Skeptics website, the problem is that the studies debunked on Lockdown Skeptics are all much older studies, and I have not been able to find debunkings of the most recent studies into this such as the ones cited in the UCSF link (and the Royal Society paper).
Instinctively I am against lockdown and facemasks because I value individual liberty and I understand the historical context of it, but I see many arguments being put forward that there is no evidence face masks are helpful at all, which seems contrary to the evidence here.
I'd appreciate it if someone could point me towards debunkings of the above papers - or recent papers that conclude the opposite. If not then I'll have to concede the scientific point to him.