| tick-borne fever | A rickettsial disease of ruminants transmitted by the tick Ixodes ricinus in Europe and Rhipicephalus haemaphysaloides supina in India and characterised by pyrexia, depression, and anorexia. (05 Mar 2000) |
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| tick fever | <infectious disease> An acute febrile (feverish) disease initially recognised in the Rocky Mountain states, caused by Rickettsia rickettsii transmitted by hard-shelled (ixodid) ticks. Occurs only in the Western Hemisphere. The disease is characterised by sudden onset of headache, chills and fever which can persist for 2-3 weeks, muscle pain. A characteristic rash appears on the extremities and trunk about the 4th day of illness. The rickettsiae grow within damaged cells lining blood vessels which may become blocked by clots. Blood vessel inflammation (vasculitis) is widespread Early recognition of the condition and prompt antibiotic treatment is important in reducing mortality. Synonym: spotted fever, tick fever, and tick typhus. (25 Jun 1999) |
| acute African sleeping sickness | A disease of humans caused by Trypanosoma brucei rhodesiense in eastern Africa from Ethiopia and Uganda south to Zimbabwe; it is clinically similar to Gambian trypanosomiasis but of shorter duration and more acute in form; patients suffer repeated episodes of pyrexia, become anaemic, and die commonly from cardiac failure. Synonym: acute African sleeping sickness, acute trypanosomiasis, East African sleeping sickness, East African trypanosomiasis. (05 Mar 2000) |
| african | Of or pertaining to Africa. African hemp, a fibre prerared from the leaves of the Sanseviera Guineensis, a plant found in Africa and India. African marigold, a tropical American plant (Tagetes erecta). African oak or African teak, a timber furnished by Oldfieldia Africana, used in ship building. Origin: L. Africus, Africanus, fr. Afer African. Source: Websters Dictionary (01 Mar 1998) |
| African endomyocardial fibrosis | Fibrosis of the inner layers of the myocardium, often including the endocardium, causing diastolic restriction of the heart; indigenous to East Africa. (05 Mar 2000) |
| African furuncular myiasis | Infection of man and animals with larvae of flies of the genus Cordylobia. Synonym: African furuncular myiasis, tumbu dermal myiasis. (05 Mar 2000) |
| african green monkey kidney cell | <cell culture> Cells taken from the kidneys of the African green monkey Cercopithecus aethiops sabaeus and used to grow certain viruses like poliovirus. (05 Feb 1998) |
| african horse sickness | An insect-borne reovirus infection of horses, mules and donkeys in africa and the middle east; characterised by pulmonary oedema, cardiac involvement, and oedema of the head and neck. (12 Dec 1998) |
| african horse sickness virus | A species of orbivirus that causes disease in horses, mules, and donkeys. (12 Dec 1998) |
| african sleeping sickness | <infectious disease> A disease affecting humans and other mammals in central Africa that is caused by the parasitic protozoans Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense and is transmitted by the tsetse fly. Symptoms include fever, chills, headache, vomiting, pain in the extremities, lymph gland enlargement, anaemia, depression, fatigue, coma, and eventually death if left untreated. The trypanosome is able to evade the host's immune system by frequently changing the proteins on its outer surface, by which the immune system identifies intruders. (05 Feb 1998) |
| african tapeworm | The beef tapeworm (Taenia saginata), the most common of the big tapeworms that parasitises people, contracted from infected raw or rare beef. Can grow to be 12-25 feet (3.6-7.5 m) long in the human intestine. (12 Dec 1998) |
| African trypanosomiasis | A serious endemic disease in tropical Africa, of two types: Gambian or West African trypanosomiasis and Rhodesian or East African trypanosomiasis. (05 Mar 2000) |
| medicine, african traditional | A system of traditional medicine which is based on the beliefs and practices of the african peoples. It includes treatment by medicinal plants and other materia medica as well as by the ministrations of diviners, medicine men, witch doctors, and sorcerers. (12 Dec 1998) |
| chronic African sleeping sickness | A chronic disease of humans caused by Trypanosoma brucei gambiense in northern and sub-Saharan Africa from Senegal east to Sudan and Uganda; characterised by splenomegaly, drowsiness, an uncontrollable urge to sleep, and the development of psychotic changes; basal ganglia and cerebellar involvement commonly lead to chorea and athetosis; the terminal phase of the disease is characterised by wasting, anorexia, and emaciation that gradually leads to coma and death, usually from intercurrent infection. Synonym: chronic African sleeping sickness, chronic trypanosomiasis, West African sleeping sickness, West African trypanosomiasis. (05 Mar 2000) |
| West African sleeping sickness | A chronic disease of humans caused by Trypanosoma brucei gambiense in northern and sub-Saharan Africa from Senegal east to Sudan and Uganda; characterised by splenomegaly, drowsiness, an uncontrollable urge to sleep, and the development of psychotic changes; basal ganglia and cerebellar involvement commonly lead to chorea and athetosis; the terminal phase of the disease is characterised by wasting, anorexia, and emaciation that gradually leads to coma and death, usually from intercurrent infection. Synonym: chronic African sleeping sickness, chronic trypanosomiasis, West African sleeping sickness, West African trypanosomiasis. (05 Mar 2000) |