I guess in the US they get a paper card with a CDC logo on it and a stamp for each injection, which will be trivially easy to fake for those who want post-vaxx privileges without actually getting the jab. Saw one on Insta today.

I’m in favor of a vaccine passport but I see a lot of chaos on the horizon as countries with high denialism (US, Germany) but also big outbound tourism and business travel, get real slacky about the passport-ness of it.