(Bloomberg) -- .The Stoxx Europe 600 Index plummeted 10.5%, the most on record, as investors already reeling from the U.S. travel ban were left underwhelmed by the European Central Bank’s policy measures to combat the impact of the coronavirus..See here for investor comments on the ECB.To contact the reporter on this story: Blaise Robinson in Paris at brobinson58@bloomberg.net.To contact the editors responsible for this story: Celeste Perri at cperri@bloomberg.net, Beth Mellor.©2020 Bloomberg L.P.