A security person moves journalists away from the Wuhan Institute of Virology after a World Health Organization team arrived for a field visit in Wuhan in China's Hubei province on Feb. 3, 2021. The hunt for COVID-19 origins has gone dark in China. An AP investigation drawing on thousands of pages of undisclosed emails and documents and dozens of interviews found feuding officials and fear of blame ended meaningful Chinese and international efforts to trace the virus almost as soon as they began, despite years of public statements to the contrary. (AP Photo/Ng Han Guan, File)
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