Late-stage studies of AstraZeneca's COVID-19 vaccine candidate are on temporary hold while the company investigates whether a recipient’s “potentially unexplained” illness is a side effect of the shot.
In a statement issued Tuesday evening, the company said it was pausing vaccinations to look into “a potentially unexplained illness," to see if the link is real or a coincidence.
Temporary halts in medical studies aren't uncommon.
Two other vaccines are in huge, final-stage tests in the United States.
One is made by Moderna and the other by Pfizer and Germany’s BioNTech.
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