American evacuees from the Diamond Princess cruise ship arrive at Joint Base San Antonio-Lackland on Feb. 17, 2020 in San Antonio, Texas. Credit: Edward A. Ornelas/Getty Images
American evacuees from the Diamond Princess cruise ship arrive at Joint Base San Antonio-Lackland on February 17, 2020 in San Antonio, Texas. The Diamond Princess cruise ship where the passengers were evacuated from, docked at the Japanese city of Yokohama, is believed to be the highest concentration of novel coronavirus cases outside of China, where the outbreak began. (Photo by Edward A. Ornelas/Getty Images)