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New COVID-19 booster shots from Pfizer are up for FDA and CDC approval based on what one critic calls ‘mouse data’ rather than a human trial. The shots have recently been reformulated to target BA.4 and BA.5, the latest omicron strains to dominate cases in the U.S.
Some scientists are alarmed that the agency plans to evaluate the next generation of boosters by reviewing mouse studies alone. Others say there's no time to waste waiting for human trials.
Some scientists are alarmed that the agency plans to evaluate the next generation of boosters by reviewing mouse studies alone. Others say there's no time to waste waiting for human trials.
What’s behind the FDA’s controversial strategy for evaluating new COVID boosters
Some scientists are alarmed that the agency plans to evaluate the next generation of boosters by reviewing mouse studies alone. Others say there's no time to waste waiting for human trials.