Countries across Europe and the Middle East are starting to offer a third dose of the COVID-19 vaccine for the most vulnerable, in an attempt to combat the spread of the Delta variant.
Countries across Europe and the Middle East are starting to offer a third dose of the COVID-19 vaccine for the most vulnerable, in an attempt to combat the spread of the Delta variant.
COVID-19 vaccine booster shots will be made widely available to Americans starting on Sept. 20, U.S. health officials said on..