A security officer wearing a face mask to protect against the spread of new coronavirus stands guard at Wuhan Tianhe International Airport in Wuhan in central China's Hubei Province, Wednesday, April 8, 2020. Within hours of China lifting an 11-week lockdown on the central city of Wuhan early Wednesday, tens of thousands people had left the city by train and plane alone, according to local media reports. (Photo by Ng Han Guan/AP Photo)
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