CNN.com - RSS Channel - HP Hero18 states have fully vaccinated more than half their population

With so many areas in the United States witnessing low vaccination rates, the spread of the Delta variant of the coronavirus will make it that much harder for the country to reach herd immunity, a top expert says.

July 04, 2021 at 02:05AM https://ift.tt/3jGa9lY so many areas in the United States witnessing low vaccination rates, the spread of the Delta variant of the coronavirus will make it that much harder for the country to reach herd immunity, a top expert says.