CDC is responding to an outbreak of respiratory illness caused by a novel (new) coronavirus. The outbreak first started in Wuhan, China, but cases have been identified in a growing number of other locations internationally, including the United States.
In addition to CDC, many public health laboratories are now testing for the virus that causes COVID-19. * 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