Researchers who correctly forecasted the growth of COVID-19 infections over the summer issued a warning Monday that cases could nearly double by Inauguration Day, Jan. 20, when presumptive President-elect Joe Biden is to be sworn into office. In a study published in the journal Scientific Reports, a...

USC and the Los Angeles County Department of Public Health on Monday released preliminary results from a scientific study that suggest COVID-19 infections are far more widespread — and the fatality rate much lower — in L.A. County than previously thought. The results are from the first round...