Isolation of warship crew sought to fight virus

The captain of a U.S. Navy aircraft carrier facing a growing outbreak of the coronavirus is asking for permission to isolate the bulk of his roughly 5,000 crew members on shore, which would take the warship out of duty in an effort to save lives.

In a memo to Navy leaders, the captain of the USS Theodore Roosevelt said the spread of the disease is ongoing and accelerating, and said that removing all but 10% of the crew is a "necessary risk" in order to stop the spread of the virus. The ship is docked in Guam.

U.S. Navy leaders were scrambling to determine how to best respond to the extraordinary request as dozens of crew members tested positive.

The outbreak on the carrier may be the Navy's most dramatic, but it tracks an accelerating upward trend across the military.

The carrier, like other Navy ships, is vulnerable to infectious disease spread given its close quarters. The massive ship is more than 1,000 feet long; sailors are spread out across a labyrinth of decks linked by steep ladder-like stairs and narrow corridors. Enlisted sailors and officers have separate living quarters, but they routinely grab their food from crowded buffet lines and eat at tables joined end-to-end.

For most people, the new coronavirus causes mild or moderate symptoms, such as fever and cough that clear up in two to three weeks. For some, especially older adults and people with existing health problems, it can cause more severe illness, including pneumonia and death.