Reporting Bias in Covid-19 Vaccine Efficacy

When the Pfizer and Moderna vaccines were rolled out in December 2020, their claimed efficacy rate were 94 - 95%. But this is misleading and the 60% of new infections that are now are found among vaccinated persons confirms this. The way data from clinical studies are calculated and interpreted, can be confusing, even for … Continue reading Reporting Bias in Covid-19 Vaccine Efficacy