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Why a highly-cited coronavirus model now projects thousands fewer US deaths than before

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A model used by the White House to help forecast U.S. coronavirus deaths now projects thousands of fewer deaths than before.

The model, from the University of Washington's Institute for Health Metrics and Evaluation (IHME), previously estimated that total U.S. deaths from COVID-19 could reach nearly 84,000 by the beginning of August.

However, these projections were recently revised downward, to about 60,400 deaths by the beginning of August, according to data on the IHME website as of Thursday (April 9).

Part of the reason for decline in the death forecast is due to new data from places where the pandemic has already peaked, such as Spain and Italy, IHME said in a post on Twitter.

These places saw fast and high peaks in COVID-19 deaths, but "it didn't go as high as we expected," Ali Mokdad, a professor of health metrics sciences at IHME, told Fox News. In addition, new data from states such as California and Washington have also better informed the model and led to the revised estimates, Mokdad said.

"Our model is designed to be updated frequently to make sure that we're making the best use of all of the available data,"  Dr. Gregory Roth, associate professor in the Division of Cardiology and adjunct associate professor of Health Metrics Sciences at IHME, told CNN.

Modeling the pandemic in the U.S. is tricky, in part because the country will probably not have one peak, but a series of peaks in different places at different times,  The Washington Post reported. 

The model also has limitations — It assumes social-distancing measures stay in place through May, and it's forecasts only go through early August, even though the U.S. could see a second wave of infections in the fall, the Post reported.

Originally published on Live Science. 

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  • DJ Emir
    Unfortunately people will go out and celebrate this and bring the numbers back up... Trump already tweeted "Liberate..." followed by various state and city names LOL we need to Liberate ourselves from him as well asap, he's dangerous. - www.djemir.com
    Reply