Figure 2.

PCR Ct-values generated from saliva samples from symptomatic and asymptomatic COVID-19 patients were comparable. Saliva samples from 85 asymptomatic COVID-19 patients were tested using the SalivaDirect PCR protocol (workflow 1). Resulting Ct values were compared to those obtained from 36 symptomatic patients collected during the same period and also tested using the SalivaDirect PCR protocol (workflow 1). We found that the Ct values did not differ between patient groups, demonstrating comparable viral load despite symptom profile and that the probability of “missing” viral infection in asymptomatic individuals due to low viral loads was low.