A new study suggests recipients of Moderna’s COVID-19 vaccine may be more likely to suffer repeated infections, perhaps indefinitely.
The study, still in preprint, found participants in Moderna’s adult trial who received the vaccine, and later were exposed to the virus, did not generate antibodies to a key component of the virus as often as did those in the placebo group.
The authors’ findings, which are corroborated by U.K. data that demonstrate the rates of infection are significantly higher in the vaccinated, suggest Moderna knew of this safety signal in 2020 when the vaccine maker was conducting its trials.
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