Quote Originally Posted by peter.gryphon View Post
There is definitely a difference between antibodies and T Cell immunity. The hard core public health people only want to consider antibodies as the measure for immunity. That way they can still insist the population needs a vaccine even after the virus peters out. Perfect example, a decade ago European countries, at the insistence of their public health agencies, spent $7 Billion on a vaccine for H1N1 that was not needed.
You are mostly right.
However, all vaccines against a specific virus are not equal as some vaccines trigger celli-mediated immunity.

Also, T memory (cell mediated immunity) is one thing but then again you also have B memory (antibody).
I have yet to see a paper on that (B cell memory) for SARS cov-2.
The S protein is apparenly not mutatiing that much so B cell memory could potentially be good too as opposed to an influenza virus.

Vaccine evaluation methods are old and not well-adapted to evaluate new vaccine technologies.

I will not comment on the nescessity of the H1N1 vaccine