Comparison of four commercial, automated antigen tests to detect SARS-CoV-2 variants of concern.

"Declarations Conflict of interestThe authors declare that they have no conflict of interest. Ethical approvalEthical approval was not required because all samples used were residual samples. Samples were identified in the laboratory and assigned a number without reference to patient or clinical details. Results from testing using the study assays did not impact on clinical care. Conflict of interest The authors declare that they have no conflict of interest."

"Funding Open Access funding enabled and organized by Projekt DEAL. This work was supported in part by the German BMBF initiative “NaFoUniMedCovid19” (01KX2021), subproject B-FAST (to U.P. and O.T.K.), and by the Free State of Bavaria (research initiatives Bay-VOC (M.M., A.G., A.B., S.K., H.B., U.P., O.T.K.) and FORCOVID (M.M., U.P., O.T.K.))."