Bartonella henselae: Difference between revisions
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Bartonella henselae
(Created page with "* Causes '''cat-scratch disease''' {{DISPLAYTITLE:''Bartonella henselae''}} Category:Gram-negative bacilli") |
(initial creation with brief epidemiology and presentation) |
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==Background== |
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* Causes '''cat-scratch disease''' |
* Causes '''cat-scratch disease''' |
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===Epidemiology=== |
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* Present worldwide |
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* Main reservoir is cats, and especially kittens |
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* Infections are more common in children, likely due to increased exposure to kittens |
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* Transmitted to humans by inoculation of cat flea (''[[Ctenocephalides felis]]'') feces into a cat scratch or bite |
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==Clinical Presentation== |
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* Classic cat-scratch disease is a self-limited febrile illness with [[Causes::regional lymphadenopathy]] |
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* Other syndromes include: |
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** Parinaud oculoglandular syndrome, with granulomatous conjunctivitis and ipsilateral regional lymphadenopathy |
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** Neuroretinitis and other ophthalmic complications |
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** Fever of unknown origin, in children |
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** Culture-negative endocarditis in patients with existing valve abnormalities |
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** Chronic endocarditis, with vasculitis and glomerulonephritis |
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* Disseminated disease is possible in immunocompromised patients, including bacteremia, disseminated skin lesions, and hepatsplenic lesions |
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{{DISPLAYTITLE:''Bartonella henselae''}} |
{{DISPLAYTITLE:''Bartonella henselae''}} |
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Revision as of 00:39, 16 May 2020
Background
- Causes cat-scratch disease
Epidemiology
- Present worldwide
- Main reservoir is cats, and especially kittens
- Infections are more common in children, likely due to increased exposure to kittens
- Transmitted to humans by inoculation of cat flea (Ctenocephalides felis) feces into a cat scratch or bite
Clinical Presentation
- Classic cat-scratch disease is a self-limited febrile illness with regional lymphadenopathy
- Other syndromes include:
- Parinaud oculoglandular syndrome, with granulomatous conjunctivitis and ipsilateral regional lymphadenopathy
- Neuroretinitis and other ophthalmic complications
- Fever of unknown origin, in children
- Culture-negative endocarditis in patients with existing valve abnormalities
- Chronic endocarditis, with vasculitis and glomerulonephritis
- Disseminated disease is possible in immunocompromised patients, including bacteremia, disseminated skin lesions, and hepatsplenic lesions
