The SARS-CoV-2 and Influenza A+B Antigen Combo Rapid Test (Nasopharyngeal Swab) is a rapid chromatographic immunoassay for the qualitative detection of SARS-CoV-2 Nucleocapsid protein, Influenza A and Influenza B virus antigens in nasopharyngeal swab specimens from individuals with suspected SARS-CoV-2/Influenza infection in conjunction with clinical presentation and the results of other laboratory tests, which can be performed with the use of LF Portable Reader Plus.