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The Pioneering Crossover Trials for Covid Vaccines and What We'll Find Out

Absolutely Maybe As results for the big phase 3 trials for the BNT-Pfizer and Moderna were looming, a debate ramped up: when would the thousands of people in their placebo groups get vaccinated? That debate got really intense when we saw how effective those vaccines looked, and how bad the Covid pandemic was getting. How do you weigh up the value of the critical information you would get from continuing the blinded trials – we only had very short-term efficacy and safety data when they deliv...
United Kingdom New York United States Carl Zimmer Stephen Senn Steven Goodman
Source: plos.org

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