Abstract: The present invention is direct to isolated polypeptides comprising or consisting of: an amino acid sequence selected from the group consisting of SEQ ID NOs: 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47 or 48; or (a) a variant and/or fragment of (a), for example: (i) a variant of (a); (ii) a fragment of (a); or (iii) a variant of a fragment of (a); together with corresponding isolated nucleic acid molecules, vectors, host cells, methods of production, vesicles, binding moieties, pharmaceutical compositions, kits, methods of treatment and medical uses.