The immunogenic properties of the potexvirus MaI va mosaic virus (MaMV) and virus-like particles (VLPs) comprising the coat proteins of MaMV are disclosed VLPs prepared from MaMV coat proteins, methods of preparing the VLPs, MaMV coat protein polypeptides and polynucleotides encoding the coat protein are taught. Further, immunogenic compositions comprising MaMV or a VLP comprising the MaMV coat protein alone or in combination with one or more antigens and the use of said compositions to vaccinate and/or induce an immune response in an animal are also taught.
