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Workers in protective gear assist a passenger in a face mask after she leaves the coronavirus-hit cruise ship Diamond Princess at Daikoku Pier Cruise Terminal in Yokohama, south of Tokyo, Japan February 21, 2020.

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Kim Kyung-Hoon/Reuters

The cruise ship went from 10 cases of to more than 630 over the course of its two-week quarantine.

Experts and officials have the decision to keep people on the ship and practices onboard.

Here’s how the cruise ship ended up with .

For the latest case total, death toll, and travel information, see .

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Passengers on the Diamond Princess cruise ship got their first piece of bad news on February 4: Ten people onboard had tested positive for the novel coronavirus.

It was the beginning of a two-week ordeal of quarantine orders and disease response that has been widely criticized as a failure. On Friday, Japan’s Ministry of Health reported that 634 people from the ship had tested positive for the virus. The US Centers for Disease Control and Prevention (CDC) reported an additional 18 cases from the ship, with an expectation that more will arise.