The data are clear: only 41% and 12% of all industry- and non-industry-sponsored vaccines, respectively, made it through all phases of clinical trials to obtain approval, and it takes about nine years at the median to obtain approval.
By contrast, the shots currently available had NO clinical trials of anything longer than a few months.
As I've said repeatedly, if people want to take the COVID19 shots because of commodities or age etc., then that's a personal choice and I'll never give you grief.
But for people who look at this data and have hesitancy, they shouldn't be treated like pariahs.
FYI