I knew something was askew when by the end of January of 2020 everyone knew there was some sort of Pox about. By March Big Pharma(Pfizer,Moderna,BioNTECH) where advertising their wares "Studies have shown the effectiveness of out vaccine....". I'm thinking really? The same studies that were suppose to take 7 years for clearance - or used to. Don't piss down our backs and tell us it's raining. I'll bet half of capitol hill had money in them
Do you mean Jan. 2021, around the time the vaccines came out?
They're obviously flubbing, but my guess is they're basing it on the fact the mRNA "technology" used in the vaccines was not "new." They've been testing that for a number of years now, its end-to-end process and effectiveness was not an unknown. But it had not yet been used in the revolution/update of any existing vaccines, for whatever reasons. I'm guessing that's what they meant when referring to "studies" and "effectiveness".....assuming they weren't outright lying.
That said, there is no substitute for real-world use over a period of years. It's tempting to say "no substitute for valid clinical trials" but drugs, etc. get recalled all the time for stuff that made it through clinical trials, and oops, looks like it's killing people with conditions X, Y, or Z, let's not sell that anymore.
I'm not an anti-vaxxer, btw. Far from it.* But I do think the rush to crown the covid vaccines as must-have, can't-miss, this will save us all, you must inject this into your body and your employees, was medically unwarranted, not to mention a serious gub'ment overreach.
*If I had a stance on the covid vax it would be that it significantly reduces risk of needing hospitalization and/or death, but that it's kinda crap at reducing your chances of actually getting it. ymmv. I'm not a scientist or a medical professional.