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45 Cards in this Set

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  • Back
Bartonella quintana – causes __
Bartonella quintana – causes Trench fever
B. quintana & B. henselae – cause __ & ____
B. quintana & B. henselae – cause Bacillary angiomatosis & Culture-negative endocarditis
B. henselae – causes
B. henselae – causes Cat Scratch Disease
B. bacilliformis - causes
B. bacilliformis - causes Oroya fever and verruga peruana
Case reports of other Bartonella spp. causing
Case reports of other Bartonella spp. causing culture-negaitve endocarditis
Carrión’s Disease - what are the acute and chronic phases?
Oroya Fever--> acute phase

Verruga Peruana--> chronic phase
Where do you find Bartonellosis ?
Bartonellosis in South America
Distribution:
Latitude between 5° N and 15° S
Altitude 500 to 3400 m. above sea level (Andes)
What is the importance of Carrion's Disease?
IMPORTANCE :
Economic >700,000 tourists to Cusco annually; also to other areas.
Case Fatality rate for untreated acute bartonellosis is 40 – 90%
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!
What department of Peru had the highest incidence of Carrion's disease in 1999?
Ancash
What departments of Peru had the largest incidence of Carrion's between 2004-2006?
Cajamarca and Ancash
Who discovered Carrion's disease?
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
What did Alberto Barton discover?
Alberto Barton, 1905 – identified Bartnoella bacilliformis within erythrocytes
In the 1990s, what several important facts emerged:
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
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.
Where do you find Carrion's Disease?
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.[
How is Carrion's Disease transmitted?
The bacterium is transmitted by sandflies of genus Lutzomyia
What is the incubation period of Carrion's?
Incubation period:
3 w (2-14 w)
endothelial cells, RES
How long do you have Oroya fever, what are the main symptoms?
Oroya fever:
2-4 w
fever, anemia
What is the intercalar period of Carrion's?
Intercalar period:
2 m
asymptomatic
How long do you have Verruga peruana, what are the main symptoms?
Verruga peruana:
months-1 year
red cutaneous nodules
Carruion's Infectious Complications:
Infectious Complications:
Salmonellosis**
Shigellosis
Enterobacterias
Staphylococci
Toxoplasmosis
Histoplasmosis
Pneumocystosis
Tuberculosis
What are miliary lesions of bartonellosis?
Miliary lesions (eruptive-phase bartonellosis). <5-mm erythematous, round papules
What are Nodular lesions of bartonellosis?
Nodular lesions.

irregularly shaped, subdermal nodular lesions on a lower extremity. The overlying skin appears normal
Which ones are the eruptive phases of bartonellosis?
Miliary lesions - numerous <5-mm erythematous, round papules

Mular lesions - erythematous, round lesion , = >5mm, usu. bleeding
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
How do you diagnose bartonellosis via histopathologically?
Rocha-Lima inclusions

Vascular tumor-like proliferation

Silver stain
How do you diagnose Carrion's Disease?
Diagnosis:
Epidemiology
Clinical picture
Blood smear
Serologic tests
PCR
Histology
Culture
Diagnosis Carrión’s Disease - what is the sensitivity of a blood smear vs. immunoblot vs PCR?
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
Carrión’s Disease
Treatment:
Acute Phase:
Acute Phase:
(7-10 days) chloramphenicol, ciprofloxacin, cephalosporins, penicillin, streptomycin
Carrión’s Disease
Treatment:
Verrucous Phase:
Verrucous phase:
(10-14 days) rifampin, azithromycin, streptomycin, surgery
Carrión’s Disease - Prevention
Prevention:
No chemo or immunoprophylaxis
Avoid contact with vectors: stay indoors at high risk hours repellents (DDT, permethrin) bed-netting
Differential Diagnosis of Fever and Anemia?
Malaria
Bartonellosis
Who gets Carrions?
Rare disease overall; travelers and non-residents
Where is it endemic?
Rare disease overall; travelers and non-residents
Endemic in Peru, Colombia and Ecuador
What is the agent?
Agent - Bartonella bacilliformis
What is the vector?
Vector – Sandfly (Lutzomyia verrucarum)
What is the latitude?
Latitude between 5° N and 15° S
What is the altitude?
Altitude 500 to 3400 m. above sea level (Andes)
Incubation period of carrions?
Average incubation period – 3 weeks
acute phase
Acute phase – Oroya fever
Chronic phase?
Chronic phase – Verruga peruana (Peruvian warts)
important complication?
Important complication – Salmonellosis
lab tests?
Lab : Blood smear (Giemsa), serology, culture
treatment?
Treatment: Quinolones, cephalosporins