A collection of reagents and other associated materials intended to be used for the qualitative and/or quantitative detection of antigens from severe acute respiratory syndrome-associated coronavirus 2 (SARS-CoV-2) and influenza A virus and/or influenza B virus in a clinical specimen within a short period, relative to standard laboratory testing procedures, using an immunochromatographic test (ICT) method. This test is commonly used in the laboratory or in point-of-care analyses to aid the differential diagnosis of coronavirus disease (COVID-19) and flu infection. It is not intended to be used for self-testing.