[Thud]

The problem with testing everyone on board the USS Roosevelt is that the tests are not perfectly reliable, and there is an interval of a few days to a week (it varies) in which a victim newly infected with Wuhan Virus does not show as infected on a lot of tests. They don't have symptoms and generally aren't infectious either. The Virus is simply slowly multiplying.

Effective testing here would consist of three tests taken at eight day intervals for everyone on board, with new people being barred for entry during the 24-day period. The eight-day interval is to outlast almost all pre-infectious periods while the Virus is building up in someone.

How fast a given victim goes from infection to testing positive for it seems to depend a lot on the initial viral load producing the infection.

[mrsmith]

Quarantines are “the oldest trick in the book” to navies. To all the military.
Hope and expect ours to respond as they should.

[Mariner]

They are in a location where they could stay tied up for 30 days, letting nobody off the ship except those going off in bubbles.

If duty calls, they COULD still get underway and deliver for a period of time. long enough to do some serious damage.

[justa-hairyape]

Every ship that has an outbreak is our of service for a month. One of the symptoms is mental derangement.