25Jul 2023
Potential “Healthy Vaccinee Bias” in a Study of BNT162b2 Vaccine against Covid-19

Potential “Healthy Vaccinee Bias” in a Study of BNT162b2 Vaccine against Covid-19

A study revealed a 94.6% lower Covid-19 mortality rate among individuals who received a Pfizer–BioNTech booster shot compared to those who didn't. A subsequent letter reported a 94.8% lower mortality rate not related to Covid-19 in the booster group. However, concerns about unadjusted confounding and the role of underlying health were raised.

  • #family health

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