That is marketing only.
Of course they are. All three of them are. They’re shots that provoke an immune response to prevent infection and severe illness from a disease.
That’s what a vaccine is.
And they’re remarkably effective. The data from Israel demonstrates that 94% of asymptomatic COVID-19 infections are BLOCKED and 97% of symptomatic infections are BLOCKED.
The smallpox vaccine was only 95% effective. We wiped smallpox off the Earth with that one.