CDC estimates that from February–December 2020: These estimates suggest that during that period, there were approximately: 83.1 Million Estimated Total Infections 70.4 Million Estimated Symptomatic Illnesses 4.1 Million Estimated Hospitalizations Last Updated†: January 15, 2021 * Since the previous update, CDC has received additional data about the proportion of persons with symptomatic illness who seek medical attention or COVID-19 testing services, one of the sources of under-detection accounted for in these estimates. These updated data indicated higher levels of health-seeking behavior than data included in our previous estimates. The higher values of health-seeking behavior result in lower estimates of infections,...