Described are a method for the identification of extracellular epitopes of Epstein Barr virus (EBV) encoded membrane proteins, expressed on the cuter cell surface of EBV-transformed mammalian cells, methods for the selection and preparation of antibody reagents specific for the said epitopes, as well as peptides, including extracellular domains of Epstein Barr Virus encoded tumour cell associated membrane proteins, the use of said peptide for immunization and therapeutic vaccination to induce antibodies and T-cells reactive with said domains, the use of said antibody reagents for the production of targeting cells, tumour cell purging and as diagnostic for and medicament against EBV-mediated malignant cell growth.
