Facebook, as part of its Data for Good program, is offering aggregated data to researchers and nonprofits on issues pertaining to COVID-19. Part of this work involves a collaboration with Carnegie Mellon University Delphi Research Center, in which some Facebook users in the United States will be asked to participate in a voluntary survey seeking to detect COVID-19 hotspots early. Results from the survey can be found [here](https://covid-survey.dataforgood.fb.com/#3.5/35/-100).