A new study estimates that 320,000 adults in Los Angeles County may have been infected with coronavirus. That's according to preliminary results of a study that suggests the illness is far more widespread than current testing shows and the death rate is much lower. The study conducted by the county and the University of Southern California estimated that approximately 4.1% of the county’s adult population of 8 million has antibodies to the virus. The study shows more people than were known have been silent carriers of the virus that has killed more than 1,200 people in California.

Mark J. Terrill/AP
Los Angeles police officers patrol a sparsely populated Venice Beach boardwalk Saturday, March 28, 2020, in Los Angeles. With cases of coronavirus surging and the death toll surpassing 100, lawmakers are pleading with cooped-up Californians to spend a second weekend at home to slow the spread of the infections. It has been more than a week since Gov. Gavin Newsom barred 40 million residents from going outdoors except for essentials. Even so, reports of crowds have prompted local and state officials to warn that ignoring social distancing, park and beach closures could spread the virus, which already is surging. (AP Photo/Mark J. Terrill)

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