Tongue visuals were obtained each two days, and the modifications had been firmly associated with the progression of COVID-19. These tongue characteristics could be used as effective, non-intrusive indices with the distinctive phases of COVID-19 stages. Our study was The 1st time tongue analysis was utilized in time series https://rylan442w8.thezenweb.com/the-2-minute-rule-for-chinese-medicine-allergies-64504161