(human herpesvirus 6) Any viral organism that can be assigned to the species Human Herpesvirus 6.

(human herpesvirus 6) A human herpesvirus that has been found in certain lymphoproliferative disorders, replicates in a number of different types of leukocytes, and is associated with the childhood disease roseola (exanthema subitum).

(human herpesvirus 6) Species of Roseolovirus isolated from patients with AIDS and other lymphoproliferative disorders; it appears to alter NK cell activity; HHV-6 is the cause of exanthema subitum and has been implicated in encephalitis.

Members of the ROSEOLOVIRUS genus of the Betaherpesvirales subfamily isolated from patients with AIDS and other LYMPHOPROLIFERATIVE DISORDERS. It infects and replicates in fresh and established lines of hematopoietic cells and cells of neural origin. It also appears to alter the activity of NK CELLS. HHV-6; (HBLV) antibodies are elevated in patients with AIDS; SJOGREN'S SYNDROME; SARCOIDOSIS; CHRONIC FATIGUE SYNDROME, and certain malignancies. HHV-6A is the most common cause of EXANTHEMA SUBITUM and has been implicated in encephalitis. When HHV-6 integrates into the host genome it is referred to as ciHVH-6. When such VIRUS INTEGRATION occurs into the germline it is referred to as iciHHV-6.