There are at least 23 people from the USS Theodore Roosevelt who tested positive for COVID-19, according to Gov. Lou Leon Guerrero.

The aircraft carrier has docked on Guam and testing is underway for the crew, according to officials. There are more than 5,000 aboard the ship and there are about 800 testing kits available with more on the way, Navy officials said Friday.

On Wednesday, four sailors who tested positive for the coronavirus were medically evacuated from the carrier to Naval Hospital Guam.

Acting Navy Secretary Thomas Modly said at a Pentagon news briefing on Friday that several more cases have been identified.

"There were three initial. There were five more that were being flown off the ship," Modly said. "And then there are several others that are in isolation right now and, as I said, the ship is going to be pulling into Guam and they're going to figure out from there who needs to come off, who can stay on looking at the level of symptoms and things like that."

Leon Guerrero said that the ship docked at the furthest dock from the port, and the USS Roosevelt crew will be restricted to the pier.

“Please be assured that we are containing the situation,” Leon Guerrero said.

"I am assured by (Joint Region Marianas Commander Rear Admiral John Menoni) that no sailors will be out of the base," she said. "They won't even go to the base. They are just quarantined in the pier area."

They are being treated at Naval Hospital Guam, Leon Guerrero said.

Chief of Naval Operations Adm. Mike Gilday in a statement said base access will be limited to the pier for Roosevelt's sailors. No base or regional personnel will access the pier, Gilday said.

Gilday also said the Navy is taking the threat very seriously, and they are working quickly to identify and isolate positive cases while preventing further spread of the virus aboard the ship.

USS Theodore Roosevelt is in Guam on a previously-scheduled port visit, he said.

"The resources at our naval medical facilities in Guam will allow us to more effectively test, isolate, and if necessary treat sailors," Gilday said. "We expect additional positive tests, and those sailors who test positive will be transported to the U.S. Naval Hospital Guam for further evaluation and treatment as necessary."

The sailors who have already been flown off the ship have mild symptoms, Modly said.

They're quarantined on Guam and have aches and pains, but nothing that requires hospitalization, Modly added.

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No specifics on quarantine location

Lt. Cmdr. Rick Moore, Joint Region Marianas spokesman, said the military will not provide specific information about where sailors are quarantined.

"We are not going to confirm specifics about where USS Theodore Roosevelt sailors are being quarantined on Naval Base Guam. Personnel in quarantine will be restricted in movement to specific locations on the base, and will not come into contact with the local community," Moore said in a statement.

Leon Guerrero also said the naval base and Andersen Air Force Base commissaries will remain open, and she's been assured the sailors from the USS Roosevelt won't interact with civilians or others on base.

“I am told that none of these sailors will be able to frequent the naval base and there will be a strict no-contact policy between civilians and service members on Guam and the incoming ship,” Leon Guerrero said at Friday afternoon press briefing.

She added that although she has the authority to turn away cruise ships looking to dock on the island, “that authority does not extend to vessels necessary to national security.”

The governor in February denied the MS Westerdam from entering the island’s port because of coronavirus concerns.

800 test kits on board

Modly said the carrier had about 800 coronavirus testing kits and more are on the way.

"There is some limited ability to do testing on the ship itself," Modley said, confirming tests can also be processed on board.

The medical team aboard USS Theodore Roosevelt is performing testing for the crew consistent with CDC guidelines, and they are working to increase the rate of testing as much as possible, according to Gilday.

Modly said they intend to test all 5,000-plus who are on board.

The immediate testing priority will be symptomatic sailors, those in close contact with sailors who have tested positive already, and essential watchstanders, Gilday said.

"We are isolating those who test positive. Testing will continue as necessary to ensure the health of the entire ship's crew. In addition, the medical staff will continue to actively monitor the health of the crew. Deep cleaning of the ship's spaces is also ongoing," Gilday said Friday.

"Our top two priorities are taking care of our people and maintaining mission readiness. Both of those go hand in glove," Gilday said. "We are confident that our aggressive response will keep USS Theodore Roosevelt able to respond to any crisis in the region."

Sen. Sabina Perez penned a letter to Menoni asking to quarantine USS Roosevelt personnel onboard the vessel.

She also sent questions to Menoni, including one about test kits. "I’m surprised to learn that military forces on Guam have access to 5,000 tests at this time. Are these tests available for Guam’s civilian pandemic response effort? Seeing as the health of civilian and military populations are intertwined, the sharing of resources will help protect both more effectively," she wrote.