Rapid Influenza A+B Test is an in vitro immunochromatographic assay for the qualitative detection of influenza type A and type B nucleoprotein antigens in nasopharyngeal swab, nasal swab and nasal aspirate samples. The identification is based on the monoclonal antibodies specific for the nucleoprotein of Influenza virus A. It is intended to aid in the rapid diagnosis of influenza infection. Negative results should be confirmed by other methods, such as cell culture.
Flu, or influenza, is a contagious respiratory infection caused by a variety of flus viruses. Symptoms of flu involve muscle aches and soreness, headache, and fever. Types A and B influenza are the more common forms of this infection, routinely causing seasonal outbreaks. Type B influenza can be just as severe as type A influenza but is less common throughout the flu season compared to type A. Unlike a type B infection, type A viruses are categorized by subtypes and strains. Influenza A mutates faster than influenza B, but both viruses are always changing, creating new strains form one flu season to the next.