Halted US trials of two coronavirus vaccines to restart
AstraZeneca and J&J expect trials to resume within days as part of the US Operation Warp Speed programme
New York — Moncef Slaoui, the head of Operation Warp Speed, said he expects the US trials of vaccines made by AstraZeneca and Johnson & Johnson (J&J) to restart as soon as this week.
The two companies developing Covid-19 vaccines backed by Operation Warp Speed temporarily halted their trials because participants fell ill, slowing down the race for a shot to halt the pandemic. J&J paused its trial last week when a participant got sick. AstraZeneca’s trial paused last month after a woman in the UK study developed neurological symptoms and the US Food and Drug Administration (FDA) has yet to clear the study to resume in the US...
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