Human herpesvirus 6 ( HHV-6 ) is a lymphotropic herpesvirus , and in vitro , it can productively infect human CD4+ T cells as HIV-1 .
human herpesvirus 6 ( hhv-6 ) is a lymphotropic herpesvirus , and in vitro , it can productively infect human cd4+ t cells as hiv-1 .
B-virus I-virus I-virus O B-virus O O O B-virus I-virus O O O O O O O O O O B-cell_line I-cell_line I-cell_line O B-virus O