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45 Cards in this Set
- Front
- Back
Bartonella quintana – causes __
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Bartonella quintana – causes Trench fever
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B. quintana & B. henselae – cause __ & ____
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B. quintana & B. henselae – cause Bacillary angiomatosis & Culture-negative endocarditis
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B. henselae – causes
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B. henselae – causes Cat Scratch Disease
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B. bacilliformis - causes
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B. bacilliformis - causes Oroya fever and verruga peruana
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Case reports of other Bartonella spp. causing
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Case reports of other Bartonella spp. causing culture-negaitve endocarditis
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Carrión’s Disease - what are the acute and chronic phases?
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Oroya Fever--> acute phase
Verruga Peruana--> chronic phase |
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Where do you find Bartonellosis ?
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Bartonellosis in South America
Distribution: Latitude between 5° N and 15° S Altitude 500 to 3400 m. above sea level (Andes) |
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What is the importance of Carrion's Disease?
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IMPORTANCE :
Economic >700,000 tourists to Cusco annually; also to other areas. Case Fatality rate for untreated acute bartonellosis is 40 – 90% |
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What is the significance of 1868, Oroya Railroad
(Puente de Verrugas)? |
Built between Callao to Oroya in the mid-1800s; In 1875 an outbreak, characterized by fever and anemia occurred in the region of construction of the railroad line between Lima and Oroya.
7000 workers died; workers from Columbia etc. had not been exposed previously; doctor caring for the patients said “it turns the blacks into whites” - profound anemia! |
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What department of Peru had the highest incidence of Carrion's disease in 1999?
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Ancash
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What departments of Peru had the largest incidence of Carrion's between 2004-2006?
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Cajamarca and Ancash
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Who discovered Carrion's disease?
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Daniel Alcides Carrión(1858-1885)
Medical student; experimental inoculation Died October 5, 1885 at age 28 Oct 5 now celebrated as Peruvian Medicine Day Declared a “National Hero” in 1991 by govt. National University and stadium now named after him |
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What did Alberto Barton discover?
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Alberto Barton, 1905 – identified Bartnoella bacilliformis within erythrocytes
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In the 1990s, what several important facts emerged:
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In the 1990s, several important facts emerged:
B. henselae causes Cat Scratch disease (40% cats carry the organism; transmitted by fleas between cats; human infection by bite or scratch from a claw containing bits of flea dirt) B. quintana (Rochalimea quintana) – trench fever; louse-borne B. henselae or B. quintana – Bacillary angiomatosis in AIDS Bartonella spp. - Culture-negative Endocarditis |
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Describe what kind of bacteria B. bacilliformis
is |
Bartonella bacilliformis is a proteobacterium, Gram negative aerobic, pleomorphic, flagellated, motile, coccobacillary, 2–3 μm large and 0.2–0.5 μm wide and facultative intracellular bacterium.
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Where do you find Carrion's Disease?
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Bartonella bacilliformis is found only in Peru, Ecuador, and Colombia.[2] It is endemic in some areas of Peru,occurring outbreaks of the disease in new epidemic areas.[
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How is Carrion's Disease transmitted?
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The bacterium is transmitted by sandflies of genus Lutzomyia
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What is the incubation period of Carrion's?
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Incubation period:
3 w (2-14 w) endothelial cells, RES |
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How long do you have Oroya fever, what are the main symptoms?
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Oroya fever:
2-4 w fever, anemia |
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What is the intercalar period of Carrion's?
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Intercalar period:
2 m asymptomatic |
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How long do you have Verruga peruana, what are the main symptoms?
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Verruga peruana:
months-1 year red cutaneous nodules |
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Carruion's Infectious Complications:
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Infectious Complications:
Salmonellosis** Shigellosis Enterobacterias Staphylococci Toxoplasmosis Histoplasmosis Pneumocystosis Tuberculosis |
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What are miliary lesions of bartonellosis?
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Miliary lesions (eruptive-phase bartonellosis). <5-mm erythematous, round papules
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What are Nodular lesions of bartonellosis?
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Nodular lesions.
irregularly shaped, subdermal nodular lesions on a lower extremity. The overlying skin appears normal |
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Which ones are the eruptive phases of bartonellosis?
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Miliary lesions - numerous <5-mm erythematous, round papules
Mular lesions - erythematous, round lesion , = >5mm, usu. bleeding |
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What are Rocha-Lima
inclusions? |
Bartonella bacilliformis, a gram-negative, flagellated, motile bacterium, is the etiologic agent of verruca peruana. It is found within the verruca, where it can form large cytoplasmic (Rocha-Lima) inclusions in endothelial cells
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How do you diagnose bartonellosis via histopathologically?
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Rocha-Lima inclusions
Vascular tumor-like proliferation Silver stain |
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How do you diagnose Carrion's Disease?
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Diagnosis:
Epidemiology Clinical picture Blood smear Serologic tests PCR Histology Culture |
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Diagnosis Carrión’s Disease - what is the sensitivity of a blood smear vs. immunoblot vs PCR?
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Blood smear:
Sens - 0.36-0.73 Spec - 0.91-0.96 Immunblot: Sens - 0.70 Spec - 0.94 PCR (16S, 23S) : Sens - 0.47 Spec - 0.98 |
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Carrión’s Disease
Treatment: Acute Phase: |
Acute Phase:
(7-10 days)chloramphenicol, ciprofloxacin, cephalosporins, penicillin, streptomycin |
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Carrión’s Disease
Treatment: Verrucous Phase: |
Verrucous phase:
(10-14 days)rifampin, azithromycin, streptomycin, surgery |
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Carrión’s Disease - Prevention
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Prevention:
No chemo or immunoprophylaxis Avoid contact with vectors:stay indoors at high risk hoursrepellents (DDT, permethrin)bed-netting |
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Differential Diagnosis of Fever and Anemia?
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Malaria
Bartonellosis |
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Who gets Carrions?
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Rare disease overall; travelers and non-residents
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Where is it endemic?
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Rare disease overall; travelers and non-residents
Endemic in Peru, Colombia and Ecuador |
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What is the agent?
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Agent - Bartonella bacilliformis
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What is the vector?
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Vector – Sandfly (Lutzomyia verrucarum)
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What is the latitude?
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Latitude between 5° N and 15° S
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What is the altitude?
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Altitude 500 to 3400 m. above sea level (Andes)
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Incubation period of carrions?
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Average incubation period – 3 weeks
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acute phase
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Acute phase – Oroya fever
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Chronic phase?
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Chronic phase – Verruga peruana (Peruvian warts)
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important complication?
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Important complication – Salmonellosis
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lab tests?
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Lab : Blood smear (Giemsa), serology, culture
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treatment?
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Treatment: Quinolones, cephalosporins
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