Germany has closed its borders with five neighbors as European infections mount, the U.S. is moving closer to a nationwide shutdown and the Philippine island of Luzon is under strict quarantine.

Meanwhile, the U.K. is seeing a backlash for what critics say is a dangerously slow response.

What about a vaccine?

While companies and researchers around the world are racing to develop one, as well as treatments, a Massachusetts biotech firm is launching human immunization trials today in Seattle.

COVD19 vaccine trial begins