RayBio 1-Step COVID-19 Influenza A/B Combination PCR Kit. 100 tests. Suitable for qualitative simultaneous detection of SARS-CoV-2 and influenza A/B nucleic acid in saliva or swab samples. Enables the user to use crude saliva or swabs directly in PCR reactions, no extraction needed. Uses CDC-approved primers. LDT ready for high complexity CLIA labs.