[Guvante]

I don't know that discrediting is a fair assessment. There is evidence of fewer or no markers in blood tests of patients who previously tested positive. Unfortunately it was impossible to tell whether that impacted immunity due insufficient time to collect data.

If losing markers is often an indicator of lost immunity then saying the expectation is lost immunity isn't wrong, even if that like ends up being false.

For instance data around infections from recovered and vaccinated people to others is still scarce to my knowledge. While we know that the health benefits for you are there whether it is enough immunity to completely prevent spread is still hard to examine.