Johnson & Johson has paused the clinical trial for its coronavirus vaccine following an “unexpected illness” in a participant.
Health experts have said that pauses in vaccine trials aren’t uncommon and mean that safety precautions are working. It’s the second vaccine trial to be paused in the U.S. A vaccine from AstraZeneca and Oxford University was put on pause last month after a participant fell ill. That trial hasn’t yet resumed in the U.S.
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It is unclear how long Johnson & Johnson’s pause could last. The company said there is a “significant distinction” between a study pause and a regulatory hold of a clinical trial, which could last much longer.
“We must respect this participant’s privacy. We’re also learning more about this participant’s illness, and it’s important to have all the facts before we share additional information,” the company said in a press release Monday night.