AlanSubie4Life
Efficiency Obsessed Member
Note that this paper doesn't represent the situation most people will be in (since it is testing either Omicron booster OR Moderna "old" booster).
However, generally interesting findings, suggesting that there may not be a huge benefit to an Omicron-specific booster, because cross-reactive memory B cells are produced and become the majority of B-cells with EITHER booster. However, again, this is NOT the scenario that most people would be looking at. They would be boosting on top of another booster, which is not assessed here. That scenario will be tested in the Omicron booster trials, however (in addition to the other scenarios).
Also interesting was the finding that mucosal immunity is much stronger after boosting in general. And of course boosting improves cross-reactive memory B-cell quantities.
Anyway, it seems reasonable to think with these results that a fourth Omicron-specific booster would have diminishing returns, either due to already strong protection, original antigenic sin, or possibly lower immunogenicity of the structure of the Omicron spike. I still want it though. It might nudge the immune system enough towards Omicron neutralization to make a bit of a difference in likelihood of infection.
One thing it seems to mean for sure is that if you're not boosted, you should NOT wait for an Omicron booster. Get boosted! This was done in non-human primates, just to be clear.
However, generally interesting findings, suggesting that there may not be a huge benefit to an Omicron-specific booster, because cross-reactive memory B cells are produced and become the majority of B-cells with EITHER booster. However, again, this is NOT the scenario that most people would be looking at. They would be boosting on top of another booster, which is not assessed here. That scenario will be tested in the Omicron booster trials, however (in addition to the other scenarios).
Also interesting was the finding that mucosal immunity is much stronger after boosting in general. And of course boosting improves cross-reactive memory B-cell quantities.
Anyway, it seems reasonable to think with these results that a fourth Omicron-specific booster would have diminishing returns, either due to already strong protection, original antigenic sin, or possibly lower immunogenicity of the structure of the Omicron spike. I still want it though. It might nudge the immune system enough towards Omicron neutralization to make a bit of a difference in likelihood of infection.
One thing it seems to mean for sure is that if you're not boosted, you should NOT wait for an Omicron booster. Get boosted! This was done in non-human primates, just to be clear.
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