Passengers stand on Costa Smeralda cruise ship is docked in the Civitavecchia port 70km north of Rome on January 30, 2020. More than 6,000 tourists were under lockdown aboard the cruise ship after two Chinese passengers were isolated over fears they could be carrying the coronavirus. - Samples from the two passengers were sent for testing after three doctors and a nurse boarded the Costa Crociere ship in the port of Civitavecchia to tend to a woman running a fever, the local health authorities said. (Photo by Filippo MONTEFORTE / AFP)