The horrific milestone came just over four months after the US's first case was confirmed and two months after most states went into lockdown.

Now experts expect to see future waves of coronavirus infections bring more deaths.

The US's first coronavirus case was reported on January 20 in Washington state.

Researchers at Columbia University estimated that if the entire US had started sheltering in place by March 1 — just two weeks sooner — 83% of the country's coronavirus deaths could have been avoided.

Epidemiologists Britta Jewell and Nicholas Jewell wrote in a New York Times article that the impact of earlier lockdowns could have been even more pronounced: They estimated that 90% of coronavirus deaths in the US could have been avoided if social distancing began March 2.

A group of experts from the Center for Infectious Disease Research and Policy have outlined three scenarios for what future waves of coronavirus infections will look like during the next 18 to 24 months?

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