AstraZeneca said it has paused global trials for the COVID-19 vaccine.
AstraZeneca described it as a “routine” pause in the case of “an unexplained illness”.
“This is a routine action which has to happen whenever there is a potentially unexplained illness in one of the trials,” the company said in an emailed statement.
The vaccine, developed with the University of Oxford, has been described by the World Health Organization as probably the world’s leading candidate and the most advanced in terms of development.
The British drugmaker said it voluntarily paused trials to allow an independent committee to review safety data.