As many as 240,000 people in the U.S. could die from COVID-19 — and that’s only with strict social distancing measures in place, one of the government’s top doctors warned Tuesday.

Dr. Deborah Birx, Vice President Mike Pence’s coronavirus response coordinator, said that between 1.5 and 2.2 million could die without the intervention.

Already, the death toll in the United States has surpassed the number of people killed on Sept. 11, 2001. According to NBC News’ tally, the disease has killed 3,768 people and infected more than 185,000.

The numbers continued to rise as Wall Street ended one of its worst quarters in history. The Dow Jones was down by 400 points — a quarterly loss of 22 percent — while the S&P 500 recorded its worst three months since 1938. The Nasdaq, meanwhile, closed down at just under 1 percent.

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