The actual report is not in a reputable journal. It claims to show the proteins were caused to fold into the prion form by the COVID vaccine, but without description of the actual tests used to run the experiment, and no presentation of data to back up the claims. This is junk. I wish science were so easy. I could win the Nobel Prize. I would just publish a paper that says I found the cure to drug addiction! No data, no facts. I can just say it and it is true! Wheeee!!!!

Yes, but the transmissability depends on the type. Prions are what causes mad-cow disease and other human neurodegenerative disorders. Prions don't easily break down with heat, which is why cooking tainted beef or lamb can still pass along their diseased proteins to the host. Some can be spread from infected medical instruments, feces, and secretions.

I don't know if all prion diseases are, but some definitely are. See: rabies, mad cow disease.

Yes. it's the reason hospitals all use disposable dishes and silverware now. You can't wash the dishes enough to make sure you don't pass on prions.