Specificity:Recognizes Influenza A H1N1 antigen. Reacts strongly with the following H1N1 strain: Beijing. A/Texas/36/91, A/Berkeley/1/98, A/HongKong/503/97, A/Nanchang/16A/98, A/PR8/34 and New Caledonia strain. No reactivity shown to Influenza B strains.