Maryanne Demasi

… Regulatory filings date stamped from April 2021 show Pfizer had strong evidence that its vaccine’s efficacy waned – results the company did not publicly release until the end of July.

Peter Doshi, associate professor at the University of Maryland School of Pharmacy, accessed these documents from the Canadian drug regulator, Health Canada.

“It’s clear from the documents that these analyses were almost four months old by the time they became public,” said Doshi.