It is used for in vitro qualitative detection of influenza A and Influenza B virus antigens in human Nasopharyngeal swab and oropharyngeal swab samples.

The prevalence of Influenza A virus is stronger than that of Influenza B virus, resulting in more serious illness, while Influenza B virus is relatively mild. The standard method for laboratory diagnosis is virus isolation and culture, and the cell culture and identification cycle is about 14 days, which seriously affects the timely medication guidance for patients in clinical practice. This method is limited in clinical application. Compared with the cell culture method, reverse transcription Polymerase chain reaction (RT-PCR) is more sensitive, but the cost of RT-PCR is higher, and the experimental time needs 4-6 hours, and it is highly professional for experimental operation. Therefore, on-site applications are limited.