#$%^&*AU2013202541A120130502.pdf#####ABSTRACT An immunological adjuvant comprises an aluminium salt, an immunostimulatory oligonucleotide and a polycationic polymer, wherein the oligonucleotide and the polymer ideally associate with each 5 other to form a complex. The adjuvant can be included in a composition with an immunogen e.g. to elicit an immune response that protects against a bacterial disease or a fungal disease.