Dr. Anthony Fauci, one of the White House COVID-19 advisors, on Tuesday shifted the goalposts on herd immunity and said that he wants to see as many as 90 percent of American adults vaccinated against the virus in the near future.
About 70 percent of U.S. adults have received at least one shot, according to federal data. But Fauci suggested that when the Food and Drug Administration (FDA) grants its final approval to COVID-19 vaccines, there will be more pressure to get people vaccinated.
