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CDC Director Robert Redfield said at a Senate hearing Wednesday that preliminary data shows that over 90% of Americans remain susceptible to COVID-19 — meaning they have not yet been exposed to the coronavirus.
Why it matters: The U.S. surpassed 200,000 coronavirus deaths this week — the most recorded in the world — and over 6.8 million Americans have contracted the virus so far.
Between the lines: While President Trump has suggested that the U.S. could combat the virus by reaching herd immunity, Redfield's statement shows how difficult — and deadly — that approach could be.
- World Health Organization officials have said that 60% to 80% of the population needs to be vaccinated or develop COVID-19 antibodies through natural infection to achieve herd immunity.
What he's saying: The virus has spread across America at varying rates since January, infecting as much as 15% to 20% of the population in some states and less than 1% in others, Redfield told the Senate Health Committee.
- "The preliminary results on the first round show that a majority of our nation — more than 90% of the population — remains susceptible."