Delta variant of COVID-19 poses risk to unvaccinated Americans and could reverse declining cases and deaths, report warns
July 08, 2021 at 10:34 AM EDT
The official global death toll from COVID-19 climbed above 4 million on Thursday, with the U.S. continuing to lead the world by cases and fatalities, but the numbers would have been far worse if the vaccines that have won emergency use authorization were not available, according to a new report.
