Time-varying effective reproductive numbers Rt, crude and standardized case and death rates at country, US state and county levels
Risk Factor Analysis of Transmission, Infection and Death Rate using Regression Analysis at the county, state and country levels
How We Feel lets you self-report any health symptoms. Aggregate data is analyzed by health professionals who are actively working to stop the spread of COVID-19.
The estimated population prevalence of SARS-CoV-2 antibodies implies that the infection may be much more widespread and it should be used to calibrate epidemic and mortality projections.