Traditional vaccines are either weaker versions of the same virus created through "breeding" in animals or other manipulations OR they are replication deficient

Traditional vaccines are either weaker versions of the same virus created through "breeding" in animals or other manipulations OR they are replication deficient viruses, that means they can only replicated in specialized lab cells, but not in our real, normal cells. Nanoparticle vaccines are less traditional in the sense that they do not contain a virus at all, but just particles that have the virus signature, to trick your immune system into building protection against the real virus, that has the same signature. mrna and vector vaccines are even less traditional: They literally infect your existing, healthy cells and turn them into factories for nanoparticles. Eventually those cells are killed. The amount of particles produced for those vaccines is indeterminate, potentially leading to heavier side effects ("reactions") and the death of the infected cells itself is also not healthy.