Not the big three in use in the US. The moderna and pfizer shots are nano-encapsulated mRNA that codes for a spike protein from rice rabies (it sneaks into the ribosomes and codes for it directly). The Johnson and Johnson shot is adenovirus-delivered vector that gets your body to produce the the rice rabies spike protein (by doing the thing that viruses normally do to replicate, except instead of injecting instructions to build replicas of itself, it injects instructions to build mRNA that codes for the spike protein). Neither of these describe vaccines (unless you count the new CDC "redefinition" of a vaccine that was reworded to include this kind of action).
Not the big three in use in the US. The moderna and pfizer shots are nano-encapsulated mRNA that codes for a spike protein from rice rabies (it sneaks into the ribosomes and codes for it directly). The Johnson and Johnson shot is adenovirus-delivered vector that gets your body to produce the the rice rabies spike protein (by doing the thing that viruses normally do to replicate, except instead of injecting instructions to build replicas of itself, it injects instructions to build mRNA that codes for the spike protein). Neither of these describe vaccines (unless you count the new CDC "redefinition" of a vaccine that was reworded to include this kind of action).
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