In this March 19, 2020, file photo, a biosafety protective suit for handling viral diseases are hung up in a biosafety level 4 training facility at U.S. Army Medical Research and Development Command at Fort Detrick in Frederick, Md., where scientists are working to help develop solutions to prevent, detect and treat the coronavirus. China is trying to spread doubt about the effectiveness of Western vaccines and the origin of the coronavirus as a World Health Organization-selected team of scientists are in the city where the pandemic first broke out. (AP Photo/Andrew Harnik, File)
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