This does not surprise me in the least. I’ve warned in the politics thread a couple of times about scam publishers and journals that basically let anyone publish anything without any review - just pay the upfront fee and there it is.
And it would definitely not surprise me one bit if some of those who had published fraudulent reports also had connections to companies that made or distributed Ivermectin.
The first two basically say ‘fraud’, the third and fourth shout ‘incompetence’, and the last one would be breech of medical ethics and lack of oversight - no-one checking protocols and procedures, which would have prevented the first two or three.
I mean, that’s pretty damning right there. Also, let’s hear it for grad students!