Individuals with SARS-CoV-2 risk factors showed a higher load of virus in saliva which could be correlated with the increasing disease severity, which could be attributed as a predictor of mortality over time (area under the curve = 0.90).12The potential of saliva transmission of COVID-19 can be due to the cell receptor of ACE2 expression in the tongue and salivary glands. Here, ACE2 is linked to COVID-19.