An electronics shop employee in Hong Kong on October 18, 2017, looks at television sets showing a news report on China's President Xi Jinping's speech at the opening session of the Chinese Communist Party's five-yearly Congress. (Anthony Wallace/AFP via Getty Images)
President Obama, with CDC Director Dr. Tom Frieden, speaks to the media during a meeting with his Ebola Response Team, October 16, 2014 in Washington, DC. (Mark Wilson/Getty Images)
A man dressed in protective hazmat clothing leaves after treating the front porch and sidewalk of an apartment where a second person diagnosed with the Ebola virus resides on October 12, 2014 in Dallas, Texas. (Mike Stone/Getty Images)
New arrivals suspected of having Ebola await entry as a health worker disinfects an ambulance in a high risk area of the Doctors Without Borders (MSF), treatment center on October 5, 2014 in Paynesville, Liberia. (John Moore/Getty Images)