On November 16th, 2020 Guanzhou International Bio-Forum was held in Guangzhou International Bio-Island, with the theme of „Scientific and Technological Innovation Leads a Healthy Future“. Zhong Nanshan, winner of the Medal of the Republic and academician of Chinese Academy of Engineering, attended the forum and delivered a speech.Zhong Nanshan: Die Rückverfolgbarkeit von COVID-19 ist noch nicht abgeschlossen. Zhong Nanshan …