http://www.sciencemag.org/news/2020/07/us-epidemiologists-say-data-secrecy-covid-19-cases-cripples-intervention-strategies

The Dodger Stadium parking lot has become a massive COVID-19 testing site, but scientists say they can’t get all the data they need on results from such sites or on hospitalized patients.

Science’s COVID-19 reporting is supported by the Pulitzer Center and the Heising-Simons Foundation.