If your attitude is "information source X has ever put out information that was false, therefore I will trust no information it ever puts out," since every poss

If your attitude is "information source X has ever put out information that was false, therefore I will trust no information it ever puts out," since every possible value of X has put out false information at some point in its existence, especially multi-century institutions like "western medicine," you're left with an inability to ever believe anything. They call this "epistemic learned helplessness" and it's an extremely unfruitful way of evaluating information. Instead, recognize that all human knowledge is probabilistic in nature. The vaccine trials were all published publicly. Review them and scrutinize the methods if you think the conclusions are likely to be wrong. It's perfectly fair to see that studies have been entirely falsified in the past, but understand also this is why the vaccine was developed in such a way that no single vendor has a monopoly patent on it. Coordinated fraud on the part of multiple researchers funded by multiple vendors in one of the most scrutinized public processes ever conducted is a lot less likely than when all of the information is being generated by a single source.