Bullit Marquez/AP

There are nearly 100 sailors who have tested positive for Covid-19 on the USS Theodore Roosevelt, a senior defense official tells CNN. The Navy has every expectation that the number will rise, source added.

About 1,000 of more than 4,000 crew members have been tested so far. The official said about 1,000 sailors have been moved ashore in Guam and that is expected to rise to 3,000 in the coming days.

Guam’s Gov. Lou Leon Guerrero said on Wednesday she will allow sailors from the USS Theodore Roosevelt in Guam if they test negative for coronavirus and undergo a 14-day quarantine.

Some context: CNN reported Tuesday that the commander of the USS Theodore Roosevelt, a US Navy aircraft carrier where an outbreak of the coronavirus has spread to at least 70 sailors, has warned Navy leadership that decisive action is required to save the lives of the ship's crew.

"We are not at war. Sailors do not need to die. If we do not act now, we are failing to properly take care of our most trusted asset — our Sailors," Capt. Brett Crozier wrote in a memo to the Navy's Pacific Fleet, three US defense officials have confirmed to CNN.

Acting Navy Secretary Thomas Modly told CNN's John King Tuesday that the Navy was working to get the sailors off the ship. "We don't disagree with the (Commanding Officer) on that ship and we're doing it in a very methodical way because it's not the same as a cruise ship, that ship has armaments on it, it has aircraft on it, we have to be able to fight fires if there are fires on board the ship, we have to run a nuclear power plant, so there's a lot of things that we have to do on that ship that make it a little bit different and unique but we're managing it and we're working through it," he added.