Specific for Influenza virus type A (nucleoprotein). Detects NP of Influenza A with high specificity and have no cross reactivity to NP of Influenza B virus. Detects Influenza A nucleoprotein in WB and ELISA. Recommended pairs for Influenza A nucleoprotein in sandwich ELISA (coating - conjugate): InA108 - InA245, InA224 - InA245.