The European Union’s medicines agency was meeting Wednesday to consider giving the green light to Moderna Inc.'s COVID-19 vaccine, a decision that would give the 27-nation bloc a second vaccine to use in the desperate battle to tame the virus rampaging across the continent.

Moderna Inc. said it would ask U.S. and European regulators Monday to allow emergency use of its COVID-19 vaccine as new study results confirm the shots offer strong protection — ramping up the race to begin limited vaccinations as the coronavirus rampage worsens.