I have on my desktop a list, from the CDC, of what is in most vaccines. If you want it, freepmail me and (tomorrow) I will see if I can somehow link it, don’t think I can copy it and have it readable.
A few things in many vaccines:
I think another kind of kidney
human other stuff including IIRC placenta
various preservatives and chemicals
and of course mercury
Makes you want to puke your guts up.
Does this help?
My wife got a flu shot a few days ago and they assured her there was no mercury in the formula.