2 D showed a trend of the respective readings towards an asymptote close above the cutoff of 1.0.
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Automated antigen assays display a high heterogeneity for the detection of SARS-CoV-2 variants of concern, including several Omicron sublineages.
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The sentences
In another recent study examining five different RATs for their performance in detecting Omicron-BA.1 and BA.2 [ 47 ], we also demonstrated that at high viral loads these RATs achieved higher sensitivities for Omicron-BA.1 than for BA.2, although this trend did not reach statistical significance.