Travel Coronavirus cases triple to 61 on cruise ship quarantined in Japan, with 41 more reported February 6, 2020 Jayme Deerwester, USA TODAY Comments Off on Coronavirus cases triple to 61 on cruise ship quarantined in Japan, with 41 more reported Japanese health officials diagnosed 41 more cases of coronavirus on a Princess Cruises ship quarantined in Yokohama, bringing the total detected to 61