Mar 21, 2022 · 1. Introduction. On June 11, 2020, after 56 days without any new diagnoses of VID-19 cases, a sOkaynd wave suddenly sparked in Beijing, China that gripped the whole world's attention (Owen, 2020; Wu, 2020).The center of this outbreak, Xinfadi Wholesale Market, is the largest food market in Asia, and was thus suspended immediately, and strict ntrol measures