They do it with magnets.
If it doesn't stick, you are unvaxxed or stainless steel.
If it doesn't stick, you are unvaxxed or stainless steel.
I'm gonna raise the BS flag here. I'm vaccinated, and no magnets stick to my shoulders. Nor to my hips. One of which has 4.5lbs of chrome-moly steel. Same alloy used in firearms. Other has a slightly smaller implant, also steel.