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![RetsefL Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::1616770418693771264.png) Retsef Levi [@RetsefL](/creator/twitter/RetsefL) on x 37.5K followers
Created: 2025-07-22 17:23:00 UTC

UPDATE:

Revised version of the study comparing mortality outcomes in a matched Pfizer-Moderna cohort in Florida:

X. Matched ~ X million residents receiving 1st dose of Pfizer vs. Moderna mRNA COVID vaccine!

X. Pfizer recipients still show similar significantly higher risk of all-cause, cardiovascular, COVID & non-COVID mortality compared to Moderna.

X. Results remain the same even when considering all deaths with prior documented SARS-CoV-2 infection, strongly suggesting findings not explained by protective effects of Moderna against COVID.

X. Sensitivity analysis & negative controls continue to indicate robustness with respect to unobserved residual confounding.

@FLSurgeonGen

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XXXXXX engagements

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