AstraZeneca pauses coronavirus vaccine trial after unexplained illness in volunteer

Drug giant AstraZeneca said Tuesday it had paused global trials of its coronavirus vaccine because of an unexplained illness in one of the volunteers.

It's a standard precaution in vaccine trials that is meant to ensure experimental vaccines don't cause serious reactions among participants.

"As part of the ongoing randomized, controlled global trials of the Oxford coronavirus vaccine, our standard review process triggered a pause to vaccination to allow review of safety data," the company said in a statement sent to CNN.

The company is testing its vaccine, called the...