| HBT | human brain thromboplastin; human breast tumor |
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| HCS | Hajdu-Cheney syndrome; Hazard Communication Standard; health care support; hourglass contraction of ... |
| hCT | human calcitonin; human chorionic thyrotropin |
| HEK | human embryo kinase; human embryonic kidney |
| HEL | hen egg white lysozyme; human embryonic lung; human erythroleukemia |
| herpes virus 3, human | The type species of varicellovirus causing chickenpox (varicella) and herpes zoster (shingles) in humans. (12 Dec 1998) |
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| herpes virus 4, human | A species of lymphocryptovirus cultivated from cultures of burkitt lymphoma. It is thought to be the causative agent of infectious mononucleosis. (12 Dec 1998) |
| 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 papilloma virus | <virology> A disease caused by the human papilloma virus characterised by a soft wart-like growth on the genitalia (for example penis, vulva). In adults this infection is most commonly transmitted sexually. Genital warts are very common and are increasing in incidence. Safe sex practices, such as using condoms can help decrease the risk of infection. Treatment includes several topical agents to eradicate the lesions, cryosurgery, laser therapy, electrocauterisation or surgical removal. See: alternate name condyloma acuminata. Acronym: HPV (27 Sep 1997) |
| 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 |
| bovine virus diarrhoea virus | A virus of the genus Pestivirus, in the family Togaviridae, causing bovine virus diarrhoea; New York, Oregon, and Indiana strains of the virus are recognised. Synonym: mucosal disease virus. (05 Mar 2000) |
| adult T-cell lymphoma | <tumour> An acute or subacute disease associated with a human T-cell virus, with lymphadenopathy, hepatosplenomegaly, skin lesions, peripheral blood involvement, and hypercalcaemia. Synonym: adult T-cell leukaemia. (05 Mar 2000) |
| anaplastic large cell lymphoma | <tumour> A form of lymphoma characterised by anaplasia of cells, sinusoidal growth, and immunoreactivity with CD30 (Ki-1 or Ber-H2). Synonym: Ki-1+ lymphoma. (05 Mar 2000) |
| benign lymphoma of the rectum | A rectal polyp composed of lymphoid tissue with follicle formation, covered by mucosa. (05 Mar 2000) |