Spike proteins are toxic, and that is what causes the blood clots, heart problems and possibly nerve problems.

The spike proteins are supposed to stay at the injection site, in the shoulder. But in a small number of people, they escape and wreak havoc on your body.

This is from a viral immunologist, an associate professor at Guelph University in Canada, the 4th ranked school in the country. Just so you know, he is in the veterinary school which I'm sure the 'fact checkers' will seize on to try and discredit him.

The link below starts 7 min 48s in. It is his summation. If you want to hear the details watch the whole thing starting about 1 m 32 seconds to skip over the useless intro.

https://vimeo.com/557428309#t=7m48s

I'm not an expert, but I don't think the spike proteins can reproduce. I don't see a way to get enough of them into you via 'shedding' from another person but I could be wrong.