2019年7月份, 网上可以看到的报道。 'Respiratory outbreak' being investigated at retirement community after 54 residents fall ill Two have died and 18 were hospitalized in Virginia, officials said. By Enjoli Francis 12 July 2019, 08:32 https://abcnews.go.com/US/respiratory-outbreak-investigat ...
COVID-19: Genetic network analysis provides 'snapshot' of pandemic origins 大传染病基因网分析快照 Researchers from Cambridge, UK, and Germany have reconstructed the early "evolutionary paths" of COVID-19 in humans -- as infection spread from Wuhan out to Europe and North America -- ...