There are now 53 confirmed cases of COVID-19 in the U.S. as more people who returned from the Diamond Princess cruise ship tested positive for the virus, according to a new update from the Centers for Disease Control and Prevention. That's a total of 39 U.S. nationals who had been on the Diamond Princess who have been infected by the virus. At least 695 people who were on the ship, which is operated by Carnival Corp. CCL, -5.72% and docked at a port in Yokohama, Japan, have been sickened by COVID-19 and three people have died. There are now more than 79,000 cases worldwide of COVID-19, a new coronavirus that first was detected in December in Wuhan, China. At least 2,622 people have died. The majority of infections and deaths have occurred in China.