WHO report shows possible COVID-19 spread in various countries before case detected in China: media
news WHO report shows possible COVID-19 spread in various countries before case detected in China: media Dong Yue © Provided by N.C.N. Limited Photo taken on March 30, 2021 shows an exterior view of the headquarters of the World Health Organization (WHO) in Geneva, Switzerland. (Xinhua/Chen Junxia) "The findings suggest that circulation of SARS-CoV-2 preceded the initial detection of cases by several weeks. Some of the suspected positive samples were detected even earlier than the first case in Wuhan, suggesting the possibility of missed circulation in other countries," Sput...