Did Ariel Israel in BMJ publication confirm that the risk of Covid infection increased significantly following a second dose of the Pfizer Covid injection? Yes!

by Paul Alexander

Researchers knew that after two doses of mRNA Pfizer vaccine, a gradual increase in the risk of infection was seen for individuals who received their second vaccine dose after at least 90 days.


‘In this large population of individuals who received two doses of the Pfizer-BioNTech BNT162b2 vaccine, we found a significantly (P<0.001) higher risk of SARS-CoV-2 infection with time elapsed since the second vaccine dose, after the initial 90 days (reference category). The increase was seen in the pre-matched cohort and was confirmed in a cohort matched for week of testing, age categories, and demographic group, and further adjusted for sex, age, socioeconomic status, and chronic comorbid conditions. These findings confirm that the BNT162b2 vaccine provided excellent protection in the initial weeks after vaccination but suggest that protection wanes for some individuals with time.’