IDflu indeholder tre forskellige stammer (typer) af influenzavirus (A/ New Caledonia/ 20/ 99, A/ Wisconsin/ 67/ 2005 og B/ Malaysia/ 2506/ 2004).
IDflu contains three different strains (types) of influenza virus (A/ New Caledonia/ 20/ 99, A/ Wisconsin/ 67/ 2005 and B/ Malaysia/ 2506/ 2004).