U.S. passengers will be flown or bused from the port — chosen for its proximity to an airport and a military base — to bases in California, Texas and Georgia for testing and a 14-day quarantine. The ship is carrying people from 54 countries, and foreigners will be whisked home.

About 1,100 crew members, 19 of whom have tested positive for coronavirus, or COVID-19, will be quarantined and treated aboard the ship, which will dock elsewhere, Gov. Gavin Newsom said.

Newsom and Oakland Mayor Libby Schaaf sought to reassure people that none of the cruise ship passengers would be exposed to the public before completing the quarantine. Officials were trying to decide where the ship and its crew would go next.

“That ship will turn around — and they are currently assessing appropriate places to bring that quarantined ship — but it will not be here in the San Francisco Bay,” Newsom said Sunday.

The ship is stationed at an unused dock and will affect regular operations at the port, which is one of the nation's busiest, said Port of Oakland spokesman Mike Zampa.

“We are confident in the measures that the state and federal government have taken,” he said. “They've cordoned off the area, they've put a perimeter fence, they're allowing no one in who doesn't belong there. With this, you won't see any of our employees or stakeholders within a mile or so of it.”

For most people, the new coronavirus causes only mild or moderate symptoms, such as fever and cough. But for some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia.

The vast majority of people recover from the disease. According to the World Health Organization, people with mild illness recover in about two weeks, while those with more severe illness may take three to six weeks to recover. In mainland China, where it first exploded, more than 80,000 people have been diagnosed and more than 58,000 have so far recovered.

In an effort to stop the virus' spread, Italy will impose travel restrictions and other strict public health measures nationwide starting Tuesday.

The combination of coronavirus fears and plunging oil prices sent stocks on Wall Street plummeting Monday.

The virus has infected 600 people in the United States — including the director of the agency that runs the airports in New York and New Jersey — and at least 26 have died, most in Washington state. U.S. Surgeon General Jerome Adams said communities will need to start thinking about canceling large gatherings, closing schools and letting more employees work from home, as many companies have done in the wake of the recent outbreak in the Seattle area.