tokens: Epstein-Barr virus ( EBV ) is a human herpesvirus which latently infects B lymphocytes .
folded_tokens: epstein-barr virus ( ebv ) is a human herpesvirus which latently infects b lymphocytes .
labels: B-virus I-virus O B-virus O O O B-virus I-virus O O O B-cell_type I-cell_type O