| tick pyaemia | A disease of lambs caused by the bacterium Staphylococcus aureus in association with infestations of the tick Ixodes ricinus and characterised by pyaemic abscesses in joints. (05 Mar 2000) |
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| tick toxicoses | Toxicoses caused by toxic substances secreted by the salivary glands of ticks; include tick paralysis (neurotropic toxin), sweating sickness (dermotropic toxin), and rhipicephalus appendiculatus toxicosis (leukotropic toxin). (12 Dec 1998) |
| tick typhus | See Typhus, tick. (12 Dec 1998) |
| tick typhus, african | See Typhus, African tick. (12 Dec 1998) |
| tick typhus, queensland | See Typhus, Queensland tick. (12 Dec 1998) |
| encephalitis, tick-borne | A disease caused by tick-borne encephalitis virus, a species of flavivirus, and a member of the subgroup encephalitis viruses, tick-borne. Tick-borne encephalitis appears to be a spectrum of disease caused by two related viruses: the european subtype - central european encephalitis virus and the eastern subtype - russian spring-summer encephalitis virus. (12 Dec 1998) |
| encephalitis viruses, tick-borne | A subgroup of the genus flavivirus that causes encephalitis and haemorrhagic fevers and is found in eastern and western europe and the former soviet union. It is transmitted by tick vectors and there is an associated milk-borne transmission from viraemic cattle, goats, and sheep. (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 |
| typhus, queensland 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 (eschar) at the site of the tick bite, swollen glands nearby (satellite lymphadenopathy), and a red raised (maculopapular) rash. (12 Dec 1998) |
| typhus, tick | Rocky Mountain spotted fever (RMSF), 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. Anyone frequenting tick-infested areas is at risk for rmsf. Onset of symptoms is abrupt with headache, high fever, chills, muscle pain. And then a rash.the rickettsiae grow within damaged cells lining blood vessels which may become blocked by clots. Blood vessel inflammation (vasculitis) is widespread early recognition of rmsf and prompt antibiotic treatment is important in reducing mortality. Also called spotted fever and tick fever. (12 Dec 1998) |
| absorption fever | An elevation of temperature often occurring, without other untoward symptoms, shortly after childbirth, assumed to be due to absorption of uterine discharges through abrasions of the vaginal wall. (05 Mar 2000) |
| acclimating fever | Elevated temperature with malaise that occurs upon working in a very hot environment. (05 Mar 2000) |
| aden fever | <virology> 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. 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. (15 Jan 1998) |
| aestivoautumnal fever | <infectious disease> A tropical parasitic disease caused by one of the genus Plasmodium and carried by infected mosquitoes of the genus Anopheles. This parasite uses red blood cells to complete its reproductive cycle. Common symptoms of an attack include high fever, chills, sweats and body aches. (27 Sep 1997) |
| African haemorrhagic fever | Haemorrhagic fever associated with the morphologically similar but antigenically distinct Marburg and Ebola viruses. See: viral haemorrhagic fever. (05 Mar 2000) |