Although monocytic cells can provide a reservoir for viral production in vivo , their regulation of human immunodeficiency virus type 1 ( HIV-1 ) transcription can be either latent , restricted , or productive .
although monocytic cells can provide a reservoir for viral production in vivo , their regulation of human immunodeficiency virus type 1 ( hiv-1 ) transcription can be either latent , restricted , or productive .
O O O O O O O O O O O O O O O O B-virus I-virus I-virus I-virus I-virus O B-virus O O O O O O O O O O O O