I no longer believe anything coming from Pfizer’s Marketing Arm, aka the CDC.
Our fedgov is sooo corrupt. Truly.
On the other hand, the European Medicines Agency (which regulates drugs for the EU) said that after 90 days the boosters have diminished so much in effectiveness that the result is negative - i.e., people who got the booster are more likely to get Covid after 90 days past the shot than people who didn’t get the booster.
They based this finding on results of studies. coming out of Denmark and Toronto.
They also declined to give approval for a fourth shot (to replenish the booster), warning that shots at short intervals were a danger to the natural immune system.