1. The vaccine does not stay in your muscle - obviously. It spreads out from the muscle slowly and does indeed enter your blood stream.
2. It is not put spike protein. It is an exposed spike protein on a larger stable "base" that ensures the spike doesn't degrade easily - so while it's smaller than the virus, the entire vaccine protein is significantly larger than just the spike.
1. The vaccine does not stay in your muscle - obviously. It spreads out from the muscle slowly and does indeed enter your blood stream.
2. It is not put spike protein. It is an exposed spike protein on a larger stable "base" that ensures the spike doesn't degrade easily - so while it's smaller than the virus, the entire vaccine protein is significantly larger than just the spike.