After reviewing as much source material as I can, I can find no evidence that Viruses can be cultured or isolated in an active form, at all. I can't find any sources that claim to have a full viral genome without a lot of guesswork.
nano bots wouldn't be magnetic
they would be titanium or polymer shell because other metals do terrible in living environments
the chips inside even theoretically would not be magnetic
also yes, the staying at the injection site seems odd, but remember they are shooting into muscle, its not like things can jump to the bloodstream easily.
Viruses work by a small amount in the air reaching the body and then exploding in number.
Shedding particles, unless they have some mechanism for replication, can cause, at most, an allergic reaction.
If you have any biological reason to disagree I am all ears.
Your panic filled question is certainly not helping prevent your imminent death.
Get ahold of yourself first so you can think straight. We have no proper evidence or biological reason to believe the shedding can cause real damage.
Viruses don't exist in the manner you think they do. Forget what they taught you in school and find sources. Find what they think they are seeing....