| herpes virus 6, human | The type species of roseolovirus isolated from patients with aids and other lymphoproliferative disorders. It infects and replicates in fresh and established lines of haematopoietic cells and cells of neural origin. It also appears to alter nk cell activity. Hhv-6 (hblv) antibodies are elevated in patients with aids, sjogren's syndrome, sarcoidosis, chronic fatigue syndrome, and certain malignancies. Hhv-6 is the cause of exanthema subitum and has been implicated in encephalitis. (12 Dec 1998) |
|---|---|
| herpes virus 7, human | A species of the family herpesviridae isolated from activated, CD4-positive T-lymphocytes taken from the blood of a healthy human. (12 Dec 1998) |
| human immunodeficiency virus | <virology> A type of retrovirus (human immunodeficiency virus) that is responsible for the fatal illness acquired immunodeficiency syndrome. Two strains have been identified. Type 1: the retrovirus recognised as the agent that induces AIDS. Type 2: a virus closely related to HIV-1 that also leads to immune suppression. HIV-2 is not as virulent as HIV-1 and is epidemic only in West Africa. Acronym: HIV (11 Nov 1997) |
| human T-cell leukaemia virus | <virology> One of a group of retroviruses which causes the disease T-cell leukaemia in humans. T-cell leukaemia is a type of the cancer leukaemia where the body uncontrollably produces large amounts of abnormal (nonworking) T lymphocytes. (09 Oct 1997) |
| human T-cell lymphoma/leukaemia virus | A group of viruses (subfamily Oncovirinae, family Retroviridae) that are lymphotropic with a selective affinity for the helper/inducer cell subset of T lymphocytes and that are associated with adult T-cell leukaemia and lymphoma. Synonym: human T-cell lymphotropic virus. (05 Mar 2000) |
| human T-cell lymphotropic virus | A group of viruses (subfamily Oncovirinae, family Retroviridae) that are lymphotropic with a selective affinity for the helper/inducer cell subset of T lymphocytes and that are associated with adult T-cell leukaemia and lymphoma. Synonym: human T-cell lymphotropic virus. (05 Mar 2000) |
| human T lymphotrophic virus | A virus that has a predilection for human lymphoid cells. (05 Mar 2000) |
| human t-lymphotropic virus | <virology> Type i: A human, single-stranded RNA retrovirus from the subfamily Oncovirinae which causes adult T-cell leukaemia and T-cell lymphoma and may also be involved in certain demyelinating diseases (diseases where the protective myelin sheath around nerve fibres are destroyed). HTLV-I is closely related to HTLV-II (60% of their genomes are identical). Type II: A human, single-stranded RNA retrovirus from the subfamily Oncovirinae which may cause diseases such as T-cell leukaemia and T-cell lymphoma (but this has not been proven). HTLV-II is closely related to HTLV I (60% of their genomes are identical). Type III: An obsolete term for human immunodeficiency virus (HIV), which causes Acquired Immunity Deficiency Syndrome (AIDS). Acronym: HTLV (09 Oct 1997) |
| influenza a virus, human | Strains of influenza a virus causing influenza and sometimes pneumonia in humans. Transmission is by aerosol. (12 Dec 1998) |
| enteric cytopathogenic human orphan virus | eCHO virus |
| basal cell papilloma | A benign skin lesion resulting from excessive growth of the top layer of skin cells. It usually is found in persons over 30 years old and may be few or numerous. (12 Dec 1998) |
| canine oral papilloma | Warts affecting mucous membranes of young dogs; caused by a papillomavirus. (05 Mar 2000) |
| papilloma | <oncology, tumour> Benign tumour of epithelium. Warts (caused by papilloma virus) are the most familiar example and each is a clone derived from a single infected cell. (18 Nov 1997) |
| papilloma acuminatum | An obsolete term for condyloma acuminatum. (05 Mar 2000) |
| papilloma canaliculum | A papillomatous benign tumour arising within the duct of a gland. (05 Mar 2000) |