FDA scientists say Novavax’s Covid-19 vaccine is effective, but also raise concerns
Scientists at the Food and Drug Administration said the Covid-19 vaccine developed by the biotech Novavax was effective at preventing disease but questioned how effective it is against currently circulating strains — and raised concerns about the potential for a rare side effect.
Their analysis, laid out in briefing documents released Friday ahead of an advisory committee meeting on the vaccine, sent Novavax shares down more than 16%.
