Respectfully, I think there is a mistake in this article.  The Pfizer and Moderna vaccines have an EFFICACY of 95% and 94.1% respectfully.  How EFFECTIVE they are is yet to be determined.

Also of interest, blood taken today from those who had recovered from SARS (15+ years earlier) still had T cells that took care of covid-19.  What is interesting is, SARS has a 20% difference compared to covid.  The current covid variants are are only 0.3% different from the original covid-19.  I don't think we have to worry about the variants.