Cytomegalovirus ( CMV ) infection is nonpermissive or persistent in many lymphoid and myeloid cell types but can be activated in differentiated macrophages .
cytomegalovirus ( cmv ) infection is nonpermissive or persistent in many lymphoid and myeloid cell types but can be activated in differentiated macrophages .
B-virus O O O O O O O O O O O O O O O O O O O O B-cell_type I-cell_type O