Ten rapid antigen tests for SARS-CoV-2 widely differ in their ability to detect Omicron-BA.4 and -BA.5.

"Declarations Conflicts of interestThe authors declare that they have no conflict of interest. This validation study was performed by an independent laboratory at a German University, which is not operated or controlled by the sponsor or manufacturer of a test by ownership, familial, contractual, or other relationships. Ethics 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. Data for specificity testing were obtained from volunteers who provided written informed consent. The corresponding study protocol follows the ethical principles for medical research involving human subjects of the Declaration of Helsinki and was approved by the Ethics Committee of the Medical Faculty of the LMU Munich (no: 22–0292). Conflicts of interest The authors declare that they have no conflict of interest. This validation study was performed by an independent laboratory at a German University, which is not operated or controlled by the sponsor or manufacturer of a test by ownership, familial, contractual, or other relationships."

"Funding Open Access funding enabled and organized by Projekt DEAL. This work was supported in part by the Free State of Bavaria (research initiatives Bay-VOC (M.M., A.G., S.K., H.B., O.T.K.) and FOR-COVID (M.M., O.T.K.))."