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by Scoundreller 1615 days ago
It’s a good study and worth reading.

Relevantly, it looked at omicron.

A few points:

> Third, we have not assessed the T cell immunity against the Omicron variant, which correlates with disease severity.

Non-antibody immune response is understudied. I suspect antibodies are just easy to measure, but, unfortunately for my academic record, there’s more to immune responses than just antibodies.

> Fourth, since all Coronavac recipients had an MN titer of <10 against the Omicron variant and the GMT against the ancestral virus is only 21.73, an accurate fold-reduction in neutralizing antibody titer cannot be determined.

Takeaway is that mRNA vaccines are very immunogenic in general. Hard to say if a more immunogenic coronavac would fare well against omicron or not.