In conclusion , HIV-1 and HIV-2 are differentially regulated by T cell activation signals , and this difference may account for the longer period of viral latency observed with HIV-2 than with HIV-1 infection .
in conclusion , hiv-1 and hiv-2 are differentially regulated by t cell activation signals , and this difference may account for the longer period of viral latency observed with hiv-2 than with hiv-1 infection .
O O O B-virus O B-virus O O O O B-other_name I-other_name I-other_name O O O O O O O O O O O O B-other_name I-other_name O O B-virus O O B-virus O O