Figure 5
From: Effect of gamma irradiation on filtering facepiece respirators and SARS-CoV-2 detection

Delta Ct values of SARS-CoV-2 RNA samples irradiated with gamma irradiation. Five samples were treated with 1, 5, 10, 15, 20, 25, 30, 40 and 50 kGy. Detection of SARS-CoV-2 RNA was performed using RT-qPCR based on both E (a) and RdRp4 genes (b). Statistically, both genes showed an overall significant (P < 0.001) increase in ΔCt values with increased doses of gamma radiation. Pairwise comparison for E gene (0 kGy vs. 15, 20, 25, 30 and 40 kGy) were significant (P < 0.001). Pairwise comparison for RdRp4 gene (0 kGy vs. 20 and 25 kGy) were significant (P < 0.001). 1/5: one sample out of 5 was detected. N.D.: not detected. Symbols represent the mean and error bars indicate the standard deviation.