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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.
Dorofe'ev 1947. Francisella tularensis is a pathogenic species of Gram-negative coccobacillus, an aerobic bacterium. [1] It is nonspore-forming, nonmotile, [2] and the causative agent of tularemia, the pneumonic form of which is often lethal without treatment. It is a fastidious, facultative intracellular bacterium, which requires cysteine for ...
Most people infected by R. rickettsii develop a spotted rash, that begins to appear 2 to 4 days after the individual develops a fever. If left untreated, more severe symptoms may develop; these symptoms may include insomnia, compromised mental ability, coma, and damage to the heart, kidneys, liver, lungs, or additional organs. [11] [10]
Human granulocytic anaplasmosis (HGA) is a tick-borne, infectious disease caused by Anaplasma phagocytophilum, an obligate intracellular bacterium that is typically transmitted to humans by ticks of the Ixodes ricinus species complex, including Ixodes scapularis and Ixodes pacificus in North America. These ticks also transmit Lyme disease and ...
Infectious mononucleosis, most commonly caused by EBV, may present as a fever of unknown origin. Other symptoms of infectious mononucleosis vary with age with middle aged adults and the elderly more likely to have a longer duration of fever and leukopenia, and younger adults and adolescents more likely to have splenomegaly, pharyngitis and ...
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Signs and symptoms are not mutually exclusive, for example a subjective feeling of fever can be noted as sign by using a thermometer that registers a high reading. [6] The CDC lists various diseases by their signs and symptoms such as for measles which includes a high fever, conjunctivitis, and cough, followed a few days later by the measles ...
Dermacentor variabilis. Dermacentor variabilis, also known as the American dog tick or wood tick, is a species of tick that is known to carry bacteria responsible for several diseases in humans, including Rocky Mountain spotted fever and tularemia (Francisella tularensis). It is one of the best-known hard ticks.