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AUBURN, Calif. (KTXL) — Placer County health officials on Wednesday announced the death of a novel coronavirus patient.

The patient was described as “an elderly adult with underlying health conditions,” officials said.

“We extend our deepest condolences to the loved ones of this patient,” Placer County Health Officer Dr. Aimee Sisson said in a news release. “While we have expected more cases, this death is an unfortunate milestone in our efforts to fight this disease, and one that we never wanted to see.”

This was the second confirmed case of the virus in Placer County and the first death related to the virus in California. It’s the 11th coronavirus-related death in the U.S.

According to the news release from the county health department, the patient was exposed during international travel in February. County, state and federal health officials believe the patient was exposed on a cruise that left San Francisco Feb. 11, went to Mexico and returned on Feb. 21.

Princess Cruises confirmed in a press release that the patient was a 71-year-old male guest who had sailed on the Grand Princess Mexican voyage.

“This individual did develop symptoms on the cruise and was still symptomatic when they passed through the Port of San Francisco on the return trip,” Dr. Sisson said.

Then on Feb. 27, the patient was taken by a Rocklin Fire Department ambulance to Kaiser Permanente Roseville.

He tested presumptively positive on Tuesday, kicking off a health investigation to discover who else might have been exposed.

“Ten health care workers at Kaiser Permanente Roseville and five emergency medical services personnel were exposed and are under quarantine for 14 days,” Sisson said. “Some of these employees did have contact with the public, but because they had no symptoms during that time. The risk of transmission to the public is very low if any.”

The Rocklin Fire Department said that three of its employees have been asked to self-quarantine for the next two weeks. So far, none of them, nor the 12 medical workers, are showing any symptoms.

“Some of these employees did have contact with the public but because they had no symptoms during that time the risk of transmission to the public is very low if any,” Sisson said.

Meanwhile, the Centers for Disease Control said at least one other patient who has tested positive for COVID-19 is believed to have been on the same cruise and other passengers may have also been exposed.

“In Sonoma County, there was a case that tested positive and it is the same cruise,” said Dr. Chris Braden with the CDC. “And I would emphasize that there are a number of other people that have been identified with some types of symptoms that are undergoing testing now.”