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Global quest underway to speed COVID-19 vaccine trials

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By Julie Steenhuysen and Ludwig Burger CHICAGO (Reuters) – Scientists are working on a benchmark for COVID-19 vaccine efficacy that would allow drugmakers to conduct smaller, speedier human trials to get them to market and address a huge global vaccine shortage. Researchers are trying to determine just what level of COVID-19 antibodies a vaccine must produce to provide protection against the illness. Regulators already use such benchmarks – known as correlates of protection – to evaluate flu vaccines without requiring large, lengthy clinical trials. “You could use it to predict efficacy from a…

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