America's daily Covid-19 cases and deaths are now about one-fifth of what they were during their winter peaks -- and one expert says the country's improved numbers have a lot to do with the climbing vaccinations.
Mandatory Credit:	Alexi Rosenfeld/Getty Images

America's daily Covid-19 cases and deaths are now about one-fifth of what they were during their winter peaks -- and one expert says the country's improved numbers have a lot to do with the climbing vaccinations.
Mandatory Credit: Alexi Rosenfeld/Getty Images

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Vaccines are helping bring down US Covid-19 numbers. But the virus is now hitting one group of Americans harder

America's daily Covid-19 cases and deaths are now about one-fifth of what they were during their winter peaks -- and one expert says the country's improved numbers have a lot to do with the climbing vaccinations.