None of which changes the fact that every vaccine since the 1920s has come with a card to add to your medical records and that the OP is wrong about the card being unusual for a vaccine and somehow a start on a vaccine passport.
Also, the smallpox vaccines pre-WW2-ish weren’t always 100% effective at preventing smallpox for various reasons, but they did reduce the risk of a lethal or disfiguring event per patient to basically zero. Check the history: https://en.wikipedia.org/wiki/Smallpox_vaccine
You might also want to look at the Kolmer and Brodie vaccines for polio: https://en.wikipedia.org/wiki/Polio_vaccine
Know the history— 30 years clinician. The point is— what is a real vaccine by definition? Covid ones as produced, with the exception of the adenovirus model J&J formula—are NOT vaccines- they are ameliorative care for the symptoms of a patient who has been infected.
Therapeutics being far more important than these- “vaccines” that are palliative and ameliorative. Which is why HCQ and Ivermectin, Merck’s antivirals and the known preventative supplementation which defeats the S protein/ACE2 receptor mech. of infection are regimens that should be readily available if not already in hand with the public.
A card for medical files is NOT one that has to be shown to get business service.
This is NOT the 19 teens of primitive idiot medicine- but to listen to Fauci and see people running around with cloth masks which do not filter angstrom size viral microparticles, this is the primitive fear based scaring the populace by Fauci, who should be imprisoned he and his demonrat cronies. Johns Hopkins epidemiology vs. CDC political stooge morons- with the new director a case in point. Politicizing science, in a “modern” age— what monsters these clowns exhibit in their
“professionalism”.