Americans evacuated from Diamond Princess Cruise ship in Japan as virus cases hit 355 Images show American tourists on buses leaving the port where their quarantined cruise ship is docked in Japan, to board chartered flights home as the number of new coronavirus cases diagnosed on the vessel jumped to 355. The Diamond Princess was placed in a 14-day quarantine in early February after a former passenger tested positive for the virus. Americans on board were given the option to leave the ship and fly home, where they will face another 14-day isolation period. IMAGES