> It's simply not possible to track "natural immunity" in a suitable way to protect the public.

Why? Germany and many other countries don't differentiate between forms of immunity.

[1] https://www.reuters.com/world/europe/germany-require-proof-c...

Here is a point I'll concede to the skeptics. By my interpretation, our health system is dysfunctional to the point that it can't reliably and practically collect immunity information in a way that's useful to the immunization effort. I have no interest in defending that.

However, given the dysfunction in our system, and given that hybrid immunity seems much better than either vaccine-induced or disease induced[1], the decision to require vaccines for everybody does make sense.

[1]: https://www.science.org/doi/10.1126/science.abj2258

> By my interpretation, our health system is dysfunctional to the point that it can't reliably and practically collect immunity information in a way that's useful to the immunization effort.

Wouldn't this apply to getting a vaccine, what makes tracking a diagnostic test so much more difficult? People could just have a photo of their positive test, just like they have a photo of their vaccine card...

Considering fake vaccine cards are already making the rounds, I doubt the positive test is easier to fake.

Looking at my vaccine card, there is nothing special like a ID number or even a signature from a doctor.

The stickers for each shot have the name of the vaccine and a lot #, so that might be the tough part, but the lot numbers are screwy. The first one is a ###A##-#A sequence and the second one is a ###A##A sequence. Not sure if there is a national tracking database on that part. No barcode for easy scanning so it probably isn't checkable.

My Dad's testing cards (The VA was doing a test for every appointment so he got tested three times in two weeks because he was having a non-COVID related issue) had a doctor's signature and the results.

I think large parts of the faction shouting about how unfair it is to expect people with previous infection to be vaccinated would also shout about the German policy of requiring a booster shot 6 months after the infection, at least that's my impression from how they argue here on HN.

So far, in the US, last I heard Pfizer requires a booster. We haven't been notified about Moderna but they might not require it. I assume that the initial studies on immunity are still tracking and will have some recommendation on what people with a previous infection should do. I would hope people follow that guidance.

Note: My last Moderna shot was in Feb, and its been radio silence and we passed the six month mark and are about to pass the eight month mark. I would hope they get done with whatever evaluation they are doing soon.