"Zn2+ inhibits coronavirus and arterivirus RNA polymerase activity in vitro and zinc ionophores block the replication of these viruses in cell culture."[44] "Antiviral Activity of the Zinc Ionophores Pyrithione and Hinokitiol against Picornavirus Infections"[45] "Detection of SARS-associated coronavirus in throat wash and saliva in early diagnosis."[46] "High expression of ACE2 receptor of 2019-nCoV on the epithelial cells of oral mucosa."[47] "Antiviral Medication"[48] “Antiviral Agent and Throat Candy, Gargle, and Mouthwash Using the Same.” [49] “Antibacterial and antifungal Activity Method, Therapeutic Method of Infectious Diseases and Preserving Method of Cosmetics.” [50] “Protective effect of hinokitiol against periodontal bone loss in ligature-induced experimental periodontitis in mice”[51]