These vaccination cards are totally unprecedented[1] and authoritarian. Oceania had always been at war with Eastasia.
[1] https://www.kxan.com/wp-content/uploads/sites/40/2021/04/yel...
I'd point at the war-on-terror as a good example of a permanent or equivalent always-at-war situation. Its not a stretch to suggest that a lot of the privacy and surveillance is based around anti-terrorism initiatives and plenty of security theater is now in place because of that. The war-on-drugs was another version of that. The war-on-... rhetoric in general is almost cliché now. This is not to say its not serious but consider the 1970s had quite a lot of terrorism going on. eg The UK had regular bombings from the IRA.
Political correctness tends to adjust definitions in ways very reminiscent of Double-speak. It seems to be a rich source of new words and terms. Like a conveyor belt.
The surveillance aspect is obvious.
Why do people always have to jump to the slippery slope fallacy when anything happens? It's good to be cautious, but you're taking it to paranoia level.