I'm a scientist and have to step in here. The covid-injections are not a surface "blister" type injection; they are into the muscle. No magnet is going to detect/be affected by, even visible magnetic particles if injected that deep, let alone microscopic particles. The fact that the covid serum is transparent indicates any particles are too small to see, and therefore, would comprise a mass so insignificant as to require some super magnetic detector, and certainly not cause a magnet to stick to someone's skin! Try the same magnet anywhere else, and you will get the same results.