Delphi Research Group. (2023). COVIDcast. (Added 4/24/2020.) Carnegie Mellon University.
This interactive map of real-time COVID-19 indicators displays intensity of activity and seven-day trends at the state, metropolitan area, and county levels. Indicators are based on data from doctor visits, self-reported symptom surveys by Facebook and Google, Google searches on COVID-19 topics, and requests for influenza testing reported by Quidel.