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USMLE > MICROBIOLOGY > Flashcards

MICROBIOLOGY Flashcards

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USMLE® Step 1 flashcards
0
Q

Lyme disease

Transmission & source: Ixodes ticks (live on deer and mice)

A

BORRELIA BURGDORFERI

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1
Q

Cat scratch disease

Transmission & source: cat scratch

A

BARTONELLA SPP

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2
Q

Recurrent fever

Transmission & source: Louse (recurrent because of variable surface antigens)

A

BORRELIA RECURRENTIS

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3
Q

Brucellosis/undulant fever

Transmission & source: unpasteurized dairy

A

BRUCELLA SPP

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4
Q

Bloody diarrhea

Transmission & source: puppies, livestock (fecal-oral, ingestion of undercooked meat)

A

CAMPYLOBACTER

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5
Q

Psittacosis

Transmission & source: parrots, other birds

A

CHLAMYDOPHILA PSITTACI

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6
Q

Q fever

Transmission & source: aerosols of cattle/sheep amniotic fluid

A

COXIELLA BURNETII

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7
Q

Ehrlichiosis

Transmission & source: Lone star tick

A

EHRLICHIA CHAFFEENSIS

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8
Q

Tularemia

Transmission & source: ticks, rabbits, deer fly

A

FRANCISELLA TULARENSIS

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9
Q

Leptospirosis

Transmission & source: animal urine

A

LEPTOSPIRA SPP

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10
Q

Leprosy

Transmission & source: Armadillos and humans with lepromatous leprosy

A

MYCOBACTERIUM LEPRAE

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11
Q

Cellulitis, osteomyelitis

Transmission & source: animal bite, cats, dogs

A

PASTEURELLA MULTOCIDA

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12
Q

Epidemic typhus

Transmission & source: louse

A

RICKETTSIA PROWAZEKII

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13
Q

Rocky Mountain spotted fever

Transmission & source: Dermacentor tick bite

A

RICKETTSIA RICKETTSII

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14
Q

Endemic typhus

Transmission & source: fleas

A

RICKETTSIA TYPHI

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15
Q

Plague

Transmission & source: fleas (rats and prairie dogs are reservoirs)

A

YERSINIA PESTIS

16
Q

A pleomorphic, gram-variable rod that causes vaginosis presenting as a gray vaginal discharge with a fishy smell

Nonpainful

Associated with sexual activity, but not an STD

Bacterial vaginosis is characterized by overgrowth of certain bacteria in vagina

Clue cells, or vaginal epithelial cells covered with bacteria, are visible under the microscope (arrow)

TREATMENT: Metronidazole

A

GARDNERELLA VAGINALIS

USMLE (2 decks)

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