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Tularemia, also known as rabbit fever, is an infectious disease caused by the bacterium Francisella tularensis. [4] Symptoms may include fever , skin ulcers , and enlarged lymph nodes . [ 3 ] Occasionally, a form that results in pneumonia or a throat infection may occur.
Louse-borne relapsing fever is more severe than the tick-borne variety. [citation needed] Louse-borne relapsing fever occurs in epidemics amid poor living conditions, famine, and war in the developing world. [6] It is currently prevalent in Ethiopia and Sudan. [citation needed] Mortality rate is 1% with treatment and 30–70% without treatment.
It is transmitted exclusively by the Dermacentor marginatus tick. It is endemic to parts of east and south Europe. [1] Infection is associated with formation of an eschar at the site of the tick bite, constitutional symptoms (fever and pains), and lymphadenopathy chiefly affecting the neck.
Relapsing fever (tick-borne relapsing fever, different from Lyme disease due to different Borrelia species and ticks) Organisms: Borrelia species such as B. hermsii, B. parkeri, B. duttoni, B. miyamotoi; Vector: Ornithodoros species; Regions : Primarily in Africa, Spain, Saudi Arabia, Asia in and certain areas of Canada and the western United ...
Alpha-gal syndrome, a tick-borne illness, is shaping up to be the new Lyme disease. Learn more about the disease and why it has doctors perplexed. The Potentially Fatal Tick-Borne Illness You ...
Tick-borne relapsing fever is transmitted through the bites of lice or soft-bodied ticks (genus Ornithodoros). [10] Each species of Borrelia is typically associated with a single tick species, with Borrelia duttoni being transmitted by O. moubata , and being responsible for the relapsing fever found in central, eastern, and southern Africa.
It is one of the relapsing fever spirochaetes, which are globally distributed yet understudied agents of tick-borne relapsing fever. [2] The tick vector Ornithodoros turicata transmits B. turicatae, which causes relapsing fever, an arthropod-borne infection of humans and other mammals caused by different Borrelia species.
However, inguinal lymph nodes of up to 15 mm and cervical lymph nodes of up to 20 mm are generally normal in children up to age 8–12. [ 38 ] Lymphadenopathy of more than 1.5–2 cm increases the risk of cancer or granulomatous disease as the cause rather than only inflammation or infection .