Read the DAMN STUDY. Not these reporters who extract bullshit.
Both Pfizer and Moderna are sharply losing effectiveness. BOTH OF THEM. They were approved from last year’s population at 90+%. That was with early/mid 2020 trial populations. J&J testing was much later in the year and not part of this Mayo study.
What was done by Mayo is not titer antibody stuff. This is actual population numbers of infection and hospitalization.
The numbers have crashed for both Moderna and Pfizer. The Jan/July population measurements say Pfizer 76% effective vs infection and 85% vs hospitalization. Moderna over those 6 months 82% vs infection and 92% vs hospitalization.
But the key data is the samples of July alone. The most recent month with Delta dominant. For July Pfizer is now 42% effective against infection and Moderna is down to 76% effective. Neither had hospital numbers for July because too recent.
This loss of performance is a combination of fading immunity (since some of the population was vaxed in Jan, some in June) and the dominance of Delta.
Note J&J reported lower numbers because they purposely included 10s of thousands of samples from Brazil and South Africa, capturing performance against those variants. J&J did their trials in late 2020 and early 2021 and in a much more pure way. Pfizer splashes the numbers, knowing J&J is only 1 injection, but the FDA and CDC explicitly note the different sample populations and timing and do not declare the mRNA vaccines superior to J&J.
42% vs. 76% is a significant difference.
So much for the 96% sales pitch.
“The numbers have crashed for both Moderna and Pfizer.”
“Moderna said in its financial report on Thursday that the effectiveness of its COVID-19 mRNA vaccine is still as high as 93% 4 to 6 months after the second vaccination, which is almost indistinguishable from the 94% effectiveness reported in the initial clinical trial.”