* Data include both confirmed and presumptive positive cases of COVID-19 reported to CDC or tested at CDC since January 21, 2020, with the exception of testing results for persons repatriated to the United States from Wuhan, China and Japan. State and local public health departments are now testing and publicly reporting their cases. In the event of a discrepancy between CDC cases and cases reported by state and local public health officials, data reported by states should be considered the most up to date.
†Self-reported by health department characterizing the level of community transmission in their jurisdiction as: “Yes, widespread” (defined as: widespread community transmission across several geographical areas); “Yes, defined area(s)” (defined as: distinct clusters of cases in a, or a few, defined geographical area(s)); “Undetermined” (defined as: 1 or more cases but not classified as “Yes” to community transmission); or “N/A” (defined as: no cases).