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. 2023 Jun 1;3(6):e0001896. doi: 10.1371/journal.pgph.0001896

Fig 5. Higher viral loads of Alpha, Beta and Delta as compared with Omicron variants.

Fig 5

The data represent the CT values of SARS-CoV-2 positive samples selected for VOC testing using specific mutation RT-PCR testing. CT values denote the results of the primary diagnostic SARS-CoV-2 PCR result on the cobas 6800 SARS-CoV-2 Roche assay (orf1ab gene target). Results for Alpha, Beta, Gamma, Delta, Kappa and Omicron variants are represented by a box and whiskers plots with IQR (10–90) and median shown by a horizontal line. Kruskal-Wallis analysis was run to determine significant differences between each VOC (p<0.05). ‘*’, denotes p<0.05 in comparison with CT of Omicron variant using the Mann-Whitney U test.