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DURHAM, N.C. (WNCN) — Durham County Public Health officials say a Durham resident tested positive for COVID-19 (coronavirus) while out of the state.

After traveling internationally, the person returned to Raleigh-Durham International Airport on March 2.

The next day, they became symptomatic while in North Carolina.

On March 5, they drove out of state, and, on March, 9, they were diagnosed with COVID-19.

“Because the diagnosed individual was not symptomatic upon flying to RDU, the risk to passengers on the flight and others within the airport is considered low,” Durham County Public Health said in a news release. “The individual was not in close contact with any other Durham County residents.”

Officials say the resident will remain in isolation.

Earlier Wednesday, an eighth NC resident tested positive for COVID-19.

“The person is doing well and is isolating at home.” the news release said.

This eighth case is related to the traveler from Indiana who visited Biogen in Raleigh last week, the release said. The Wake County Public Health Division is now working to determine the patient’s close contacts, which the Center for Disease Control defines as being within about 6 feet of an infected person for 10 minutes or longer.

Health officials said on Monday that five people in Wake County tested presumptive positive for coronavirus after attending a Biogen conference in Boston during the last week in February.