Oxford-AstraZeneca coronavirus vaccine trial shows up to 90% effectiveness

Read MoreThe coronavirus vaccine being developed by AstraZeneca and the University of Oxford is up to 90% effective in preventing the disease, with clinical trials also showing that it may stop transmission among people. Charlie D’Agata continues our series “Racing to a Cure.”The coronavirus vaccine being developed by AstraZeneca and the University of Oxford is up to 90% effective in preventing the disease, with clinical trials also showing that it may stop transmission among people. Charlie D’Agata continues our series “Racing to a Cure.”