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Covid antibody testing results
Based on the results of the first round of testing, the research team estimates that approximately 4.65% of the county’s adult population has an antibody to the virus. (Photo/Kit Karzen)

Early antibody testing suggests COVID-19 infections in L.A. County greatly exceed documented cases

USC and L.A. County Department of Public Health officials have released the preliminary results of their antibody tests, which show a surprising number of residents have been infected with the coronavirus.