| African tick fever | A form of haemorrhagic fever distinct from Omsk haemorrhagic fever, occurring in central Russia, transmitted by species of the tick Hyalomma, and caused by Crimean-Congo haemorrhagic fever virus, a member of the Bunyaviridae family; horses are the chief reservoir of human infection; characterised by abrupt onset, high fever, headache, myalgia, widespread petechial haemorrhagic lesions, gastrointestinal bleeding, high fatality rate. Synonym: African tick fever. (05 Mar 2000) |
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| South African tick-bite fever | A typhus-like fever of South Africa caused by Rickettsia rickettsii and usually characterised by primary eschar and regional adenitis, rigors, and maculopapular rash on the fifth day, often with severe central nervous system symptoms. (05 Mar 2000) |
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| african tick typhus | One of the tick-borne rickettsial diseases of the eastern hemisphere, similar to Rocky Mountain spotted fever, but less severe, with fever, a small ulcer (tache noire) at the site of the tick bite, swollen glands nearby (satellite lymphadenopathy), and a red raised (maculopapular) rash. Also called fi |
| tick typhus, african | See Typhus, African tick. (12 Dec 1998) |
| typhus, african tick | One of the tick-borne rickettsial diseases of the eastern hemisphere, similar to rocky mountain spotted fever, but less severe, with fever, a small ulcer (tache noire) at the site of the tick bite, swollen glands nearby (satellite lymphadenopathy), and a red raised (maculopapular) rash. Also called fi |
| African haemorrhagic fever | Haemorrhagic fever associated with the morphologically similar but antigenically distinct Marburg and Ebola viruses. See: viral haemorrhagic fever. (05 Mar 2000) |
| african swine fever | A usually fatal iridovirus infection of pigs, characterised by fever, cough, diarrhoea, haemorrhagic lymph nodes, and oedema of the gallbladder. (12 Dec 1998) |
| african swine fever-like viruses | An unnamed, unclassified genus of DNA viruses with a single species: african swine fever virus. (12 Dec 1998) |
| african swine fever virus | The lone species of the genus african swine fever-like viruses. The virus causes a fatal disease among domestic pigs in africa and a less virulent infection in europe. The virus is present in soft ticks (ornithodoros moubata), warthogs, or domestic pigs. Originally listed as a species of iridoviridae, the virus exhibits some similarities to poxviridae but its differences warranted placement in a separate genus of an, as yet unknown, family. (12 Dec 1998) |
| West African fever | A condition, now uncommon, resulting from Plasmodium falciparum infection (malignant tertian malaria with severe haemolysis); frequently seen in Caucasians after interrupted treatment with quinine. Synonym: blackwater fever, haemoglobinuric fever, West African fever. (05 Mar 2000) |
| Central European tick-borne fever | 1. (Central European subtype) tick-borne meningoencephalitis caused by a flavivirus closely related to the virus causing the Far Eastern type; it is transmitted by Ixodes ricinus, also by infected raw milk, especially that of goats. Synonym: biundulant meningoencephalitis, Central European tick-borne fever, diphasic milk fever, Russian spring-summer encephalitis (Western subtype). 2. (Eastern subtype) tick-borne encephalitis, a severe form of encephalitis caused by a flavivirus, a virus belonging to the Flaviviridae family, and transmitted by ticks (Ixodes pertulcatus and I. Ricinus). Synonym: Russian tick-borne encephalitis. (05 Mar 2000) |
| Colorado tick fever | <infectious disease> A rare acute viral infection transmitted via a tick bite (Dermacentor andersoni). Disease is limited to the western United States, particularly Colorado. The incubation period is 3-6 days. Symptoms include fever (that may abate and then recur), sweats, chills, joint pains, headache, photophobia, nausea, vomiting, rash and weakness. Treatment includes tick removal and acetaminophen to control fever. The disease is generally self-limited and nonserious. (27 Sep 1997) |
| colourado tick fever | A febrile illness characterised by chills, aches, vomiting, leukopenia, and sometimes encephalitis. It is caused by the colourado tick fever virus, a reovirus transmitted by the tick dermacentor andersoni. (12 Dec 1998) |
| colourado tick fever virus | A species of reovirus transmitted by the tick dermacentor andersonii and causing fever, chills, aching head and limbs, and often vomiting. It occurs in the northwestern united states, except the pacific coast. (12 Dec 1998) |
| mountain tick fever | A rare acute viral infection transmitted via a tick bite (Dermacentor andersoni). Disease is limited to the western United States, particularly Colorado. The incubation period is 3-6 days. Symptoms include fever (that may abate and then recur), sweats, chills, joint pains, headache, photophobia, nausea, vomiting, rash and weakness. Treatment includes tick removal and acetaminophen to control fever. The disease is generally self-limited and nonserious. (27 Sep 1997) |
| North Queensland tick fever | A mild form of tick-borne typhus with eschar, adenopathy, rash, and fever, caused by Rickettsia australis and thought to be transmitted by the tick, Ixodes holocyclus. (05 Mar 2000) |