Epstein-barr virus antigen constructs

A polynucleotide encoding a polypeptide comprising:

• (a) at least one fragment of at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90 or at least 100 amino acids of an LMP1 protein,
• (b) at least one fragment of at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90 or at least 100 amino acids of an LMP2 protein,
• (c) at least one fragment of at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90 or at least 100 amino acids of an EBNA1 protein, and
• (d) at least one fragment of at least 8, at least 9, at least 10, at least 11, at least 12, at least 13, at least 14, at least 15, at least 20, at least 30, at least 40, at least 50, at least 60, at least 70, at least 80, at least 90 or at least 100 amino acids of an EBNA3A protein;
• wherein the polynucleotide is operatively linked to one or more sequences which direct expression of said polypeptide in a host cell;
• and wherein the polypeptide is at least 80%, at least 85%, at least 90%, at least 95% or at least 99% identical to SEQ ID NO:
• 24 or SEQ ID NO:
• 26.