Subtitles section Play video Print subtitles US President Joe Biden said in an interview aired on Sunday that it will be difficult for the United States to reach herd immunity by the end of this summer. Herd immunity has reached when a large portion of the population has developed immunity toe a virus. Top U. S infectious disease expert Dr Anthony Fauci has said 75% of Americans have to be vaccinated to reach her immunity. In an interview with CBS aired on Sunday, Biden acknowledged that quote. The idea that this could be done and we can get to herd immunity much before the end of this summer is very difficult. As of Sunday morning, the Centers for Disease Control said the US had administered just over 41 million doses of CO vid 19 vaccines and distributed just over 59 million doses, according to a Reuters tally.
B2 immunity herd immunity herd biden summer sunday Biden says challenging for U.S. to reach herd immunity by summer's end 26 1 林宜悉 posted on 2021/02/08 More Share Save Report Video vocabulary