The vax antibodies are declining in efficacy pretty rapidly it seems. They will need bi-annual vax shots just to keep up with the mutations. A couple of caveats to this article. The Epsilon variant is very uncommon and the article fails to mention that half of the immunity battle relies on your T-cells, which the article does not mention. You can have zero antibodies to a virus, but still kick its ass as long as your T-cells are on the ball and remember the virus. Still, the trend is not good for not needing a booster. I think this CDC statement about not agreeing on the need for a booster with Pfizer is PR theater bullshit to pretend that the CDC is uninfluenced by pharma. I think they will reverse course in the not too distant future.
https://www.dailymail.co.uk/health/article-9765417/Epsilon-COVID-19-variant-contains-mutation-allow-bypass-vaccine-immunity.html
Spike proteins in the California 'Epsilon' variant may be able to evade the neutralizing antibodies in Pfizer and Moderna vaccines
Effectiveness of vaccines could potentially be reduced by 50 to 70 percent against the strain
The findings mean that the vaccines will not be effective in combatting the variant
Over 97% of cases of the Epsilon variant have been detected in the U.S., with almost half in California