| hereditary haemorrhagic thrombasthenia | <haematology> A form of congenital platelet functional defect that result in prolongation of the bleeding time. Characteristics include mucosal and post-operative bleeding that may be severe. (17 Dec 1997) |
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| simian haemorrhagic fever | A highly fatal disease of macaque monkeys caused by the simian haemorrhagic fever virus and characterised by fever, facial oedema, anorexia, adipsia, skin petechiae, diarrhoea, haemorrhages, and death. (05 Mar 2000) |
| simian haemorrhagic fever virus | An arterivirus causing simian haemorrhagic fever in macaque monkeys. (05 Mar 2000) |
| superior haemorrhagic polioencephalitis | <syndrome> A condition frequently encountered in chronic alcoholics, largely due to thiamin deficiency and characterised by disturbances in ocular motility, pupillary alterations, nystagmus, and ataxia with tremors; an organic-toxic psychosis is often an associated finding, and Korsakoff's syndrome often coexists; characteristic cellular pathology found in several areas of the brain. Synonym: superior haemorrhagic polioencephalitis, Wernicke's disease, Wernicke's encephalopathy. (05 Mar 2000) |
| dengue haemorrhagic fever | <microbiology> A tropical disease caused by dengue virus (Arbovirus), that is transmitted by the bite of an infected mosquito of the genus Aedes). Four severity grades of the illness are seen: grade I (fever and constitutional symptoms), grade II (grade I plus spontaneous bleeding of skin, gums or gastrointestinal tract), grade III (grade II plus agitation and circulatory failure) and grade IV (profound shock). Grade I infection is seen most frequently in world travelers, where it is usually self-limited and rarely fatal. The other grades are referred to as dengue haemorrhagic fever and are often fatal. Dengue haemorrhagic fever appears to be an infection by one of the other dengue viruses. Prior immunity to a different dengue virus type appears to be important in the development of the more serious haemorrhagic form. Vaccines are available. Protection from mosquitoes is an important preventive measure. (27 Sep 1997) |
| infantile acute haemorrhagic oedema of the skin | A generally benign form of cutaneous vasculitis, characterised by ecchymotic purpura, often in a cockade pattern, and inflammatory oedema in infants. (05 Mar 2000) |
| Omsk haemorrhagic fever | A form of epidemic haemorrhagic fever found in central Russia, caused by the Omsk haemorrhagic fever virus, a member of the family Flaviviridae, and transmitted by Dermacentor ticks; associated with gastrointestinal symptoms and haemorrhages but little or no central nervous system involvement. (05 Mar 2000) |
| Omsk haemorrhagic fever virus | A virus of the genus Flavivirus causing Omsk haemorrhagic fever. (05 Mar 2000) |
| telangiectasia, hereditary haemorrhagic | An autosomal dominant vascular anomaly characterised by the presence of multiple small telangiectases of the skin, mucous membranes, gastrointestinal tract, and other organs, associated with recurrent episodes of bleeding from affected sites and gross or occult melena. (12 Dec 1998) |
| ebola haemorrhagic fever | An epidemic viral illness seen in southern Sudan and Zaire, caused by the Ebola virus. The illness is characterised by fever, malaise, muscle aches, respiratory symptoms, diarrhoea, vomiting, epistaxis, haemoptysis, haematemesis, rash, tremors and subconjunctival haemorrhages. Transmitted by close bodily contact with infected individuals (blood, faeces and body fluids). Incubation is-21 days with initial symptoms of fever and headache. There is no specific treatment and death can occur within 10 days. (27 Sep 1997) |
| thrombocythemia, haemorrhagic | A clinical syndrome characterised by repeated spontaneous haemorrhages and a remarkable increase in the number of circulating platelets. (12 Dec 1998) |
| epidemic haemorrhagic fever | A condition characterised by acute onset of headache, chills and high fever, sweating, thirst, photophobia, coryza, cough, myalgia, arthralgia, and abdominal pain with nausea and vomiting; this phase lasts from three to six days and is followed by capillary and renal interstitial haemorrhages, oedema, oliguria, azotemia, and shock; most varieties are caused by arboviruses (togaviruses, arenaviruses, flaviviruses, and bunyaviruses), and are rodent-borne. Synonym: haemorrhagic fever with renal syndrome, Songo fever. (05 Mar 2000) |
| epizootic haemorrhagic disease of deer | A haemorrhagic disease of certain deer of the central and eastern United States, caused by an orbivirus, a member of the Reoviridae, and characterised by multiple haemorrhages, shock, and trauma; infection is thought to be arthropod-borne. Synonym: haemorrhagic disease of deer. (05 Mar 2000) |
| epizootic haemorrhagic disease of deer virus | An orbivirus causing epizootic haemorrhagic disease of deer. (05 Mar 2000) |
| Far East haemorrhagic fever | Tick-borne infection with Rickettsia sibirica, seen primarily in Siberia and Mongolia. (05 Mar 2000) |