He's right, we don't.  But he doesn't either.

https://childrenshealthdefense.org/defender/virologist-huge-price-covid-mass-vaccination/

IMPO, his credentials do NOT make him a stellar representative of this thing.  He worked for Bill Gates "foundation" and a few other questionable places? 

He's right about the high price for any and all vaccines, however, not just corona vaccines.  ALL vaccines are/can be dangerous.  Do the history checks on safety issues and you'll see I'm right, providing you can even FIND that information anymore.  Lots of it has probably been removed from the internet although we're supposed to think the internet is wonderful.  Exactly HOW does that work when you don't trust the internet or any interweb service?? Don't wait for an answer . . . you'll be old and gray before you get one, if you ever do.