This report that has me somewhat concerned about vaccine escape by a variant. Most previous reports were neutralizing antibody studies. These are clinical results.
Astra Zeneca vaccine was only 10% effective against the B.1.351 variant in South Africa. nejm.org/doi/full/10.10…
Astra Zeneca vaccine was only 10% effective against the B.1.351 variant in South Africa. nejm.org/doi/full/10.10…
Among 39 mild to moderate cases with this variant, 20 occurred in placebo group and 19 in vaccine group. Means: No protection seen.
I'm still optimistic that there will be protection against severe disease and deaths.
I'm still optimistic that there will be protection against severe disease and deaths.
There were no severe cases of COVID in this study. No hospitalizations or deaths. It's a small study (n=2021).
Time will tell. Even more reason to consider vaccinations from a global standpoint. Because leaving parts of the world unvaccinated is self defeating.
Time will tell. Even more reason to consider vaccinations from a global standpoint. Because leaving parts of the world unvaccinated is self defeating.
Here is the efficacy table overall for this study. @NEJM 
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