An attendee of a conservative conference where President Trump and Vice President Mike Pence spoke last week has tested positive for the coronavirus, according to the event’s organizer.

The organizer, the American Conservative Union, which hosts the annual Conservative Political Action Conference outside Washington, D.C., said the attendee was exposed to the virus before the four-day event and tested positive for it on Saturday.

“This attendee had no interaction with the president or the vice president and never attended the events in the main hall,” the group said in a statement. “The Trump administration is aware of the situation, and we will continue regular communication with all appropriate government officials.”

The attendee has been quarantined in New Jersey, the statement said.

Mr. Trump said on Saturday that he was not worried that the infections seemed to be getting closer to the White House.