March 17: 4,226 confirmed cases of COVID-19

Cases in U.S.

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Updated March 17, 2020

This page will be updated regularly at noon Mondays through Fridays. Numbers close out at 4 p.m. the day before reporting.

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.

COVID-19: U.S. at a Glance*

• Total cases: 4,226
• Total deaths: 75
• Jurisdictions reporting cases: 53 (49 states, District of Columbia, Puerto Rico, Guam, and US Virgin Islands)

^* 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.

Cases of COVID-19 Reported in the US, by Source of Exposure*†

Cases of COVID-19 Reported in the US, by Source of Exposure

Travel-related
229

Close contact
245

Under investigation
3,752

Total cases
4,226

^* 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.

† CDC is no longer reporting the number of persons under investigation (PUIs) that have been tested, as well as PUIs that have tested negative. Now that states are testing and reporting their own results, CDC’s numbers are not representative of all testing being done nationwide.

Coronavirus in Illinois updates: State announces 55 new cases of COVID-19 — an uptick of more than 50%

State officials on Tuesday announced 55 new cases of the coronavirus, bringing the total in Illinois to 160 COVID-19 cases since the start of the outbreak. Cases have occurred in patients ages 9 to 91. The virus has now been detected in 15 counties across the state.