People walk on a street in New York, the United States, on July 20, 2021. COVID-19 cases and deaths are surging again in the United States as the highly transmissible Delta variant is taking hold and vaccination efforts are stagnating in the country.
Photo shows Yuan Zhiming, professor with the Wuhan Institute of Virology (WIV) under the Chinese Academy of Sciences as well as director of the National Biosafety Laboratory (NBL) at the WIV answering questions of journalists at a press conference held by the State Council Information Office of China on July 22. (Photo by Xu Xiang/Website of the State Council Information Office of China) It has become a general consensus among scientists and scholars that the novel coronavirus originated naturally, and scientific evidence has already disproven the “lab leak” theory, stressed a professor of the Wuhan Institute of Virology (WIV) under the Chinese Academy of Sciences, where it has been claimed that the virus might have escaped from.
Fort Detrick, dubbed "the center of the U.S.
BEIJING, July 23 (Xinhua) -- Amid a surge in confirmed COVID-19 cases in the United States, some U.S.
