More than half of Americans are willing to get vaccinated against COVID-19
WHO experts have pointed to a 65%-70% vaccine coverage rate as a way to reach population immunity through vaccination, putting the United States just below.
A nurse carries China's Sinovac vaccine, a potential vaccine for the coronavirus disease (COVID-19), at the Sao Lucas Hospital of the Pontifical Catholic University of Rio Grande do Sul (PUCRS), in Porto Alegre, Brazil(photo credit: REUTERS/DIEGO VARA)ByZACHARY KEYSER
