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Bartonella henselae, formerly Rochalimæa henselae, is a bacterium that is the causative agent of cat-scratch disease [1] (bartonellosis). Bartonella henselae is a member of the genus Bartonella, one of the most common types of bacteria in the world. [specify] It is a facultative intracellular microbe that targets red blood cells.
Patients can develop two clinical phases: an acute septic phase and a chronic eruptive phase associated with skin lesions. [3] In the acute phase (also known as Oroya fever or fiebre de la Oroya), B. bacilliformis infection is a sudden, potentially life-threatening infection associated with high fever and decreased levels of circulating red blood cells (i.e., hemolytic anemia) and transient ...
Bacillary angiomatosis is primarily a vascular skin lesion that may extend to bone or be present in other areas of the body. In the typical scenario, the patient has HIV or another cause of severe immune dysfunction. Bacillary peliosis is caused by B. henselae that most often affects people with HIV and other conditions causing severe immune ...
It is caused by either Bartonella henselae or B. quintana. [2] B. henselae is most often transmitted through a cat scratch or bite, [3] though ticks and fleas may also act as vectors. B. quintana is usually transmitted by lice. It can manifest in people with AIDS [4] and rarely appears in those who are immunocompetent. [citation needed]
Bartonella is a genus of Gram-negative bacteria. It is the only genus in the family Bartonellaceae. It is the only genus in the family Bartonellaceae. [ 2 ] [ 3 ] Facultative intracellular parasites , Bartonella species can infect healthy people, but are considered especially important as opportunistic pathogens . [ 4 ]
Main article: Human parasite Endoparasites Protozoan organisms Common name of organism or disease Latin name (sorted) Body parts affected Diagnostic specimen Prevalence Source/Transmission (Reservoir/Vector) Granulomatous amoebic encephalitis and Acanthamoeba keratitis (eye infection) Acanthamoeba spp. eye, brain, skin culture worldwide contact lenses cleaned with contaminated tap water ...
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Carrion's disease is caused by Bartonella bacilliformis. [4] [7] Recent investigations show that Bartonella ancashensis may cause verruga peruana, [8] [9] [10] although it may not meet all of Koch's postulates. [11]