Nick Roman, host of KPCC's "All Things Considered" speaks with University of California Irvine Associate Professor of Public Health Tim Bruckner about the university's new antibody study in Orange County, and what it can show us about the spread of COVID-19 in the county.

LA County expands parking restrictions for RVs and large vehicles in unincorporated communities
00:42

Hundreds of cyclists take over the LA Marathon route for an unofficial ride. Want to join?
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LA could see another record-breaking year of deaths in county jails. Leaders vote to make changes
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