Epstein-Barr virus , a human gammaherpesvirus , possesses a unique set of latent genes whose constitutive expression in B cells leads to cell growth transformation .
epstein-barr virus , a human gammaherpesvirus , possesses a unique set of latent genes whose constitutive expression in b cells leads to cell growth transformation .
B-virus I-virus O O B-virus I-virus O O O O O O B-DNA_family_or_group I-DNA_family_or_group O O O O B-cell_type I-cell_type O O B-other_name I-other_name I-other_name O