Atypical Bacteria

Question 1

No cell wall

Walking pneumonia

Answer 1

Mycoplasma

Question 2

Abscess
Acid fast
Aerobe
Filamentous
Slow growing

Answer 2

Nocardia

Question 3

Anaerobe
Draining sinus tracts
Filamentous
Mycetoma
Sulfur granules

Answer 3

Actinomyces

Question 4

Abscess
Foul-smelling
Mixed infection

Answer 4

Bacteroides fragilis

Question 5

Painless ulcer (chancre)
Palm and sole rash
Spirochete
STD
Strict anaerobe
Syphilis
Unculturable

Answer 5

Treponema pallidum

Question 6

Deer tick
Erythema chronicum migrans
Lyme disease

Answer 6

Borrelia burgdorferi

Question 7

Antibiotic for Lyme patient < 8 years old

Answer 7

Ampicillin

Question 8

Acid fast
Granuloma
Isoniazid
Lowenstein-Jensen medium
PPD

Answer 8

Mycobacterium tuberculosis

Question 9

Anesthetic skin lesion
Leprosy
Nerve damage

Answer 9

Mycobacterium leprae

Question 10

Elementary bodies
Iodine stain
Reticulate bodies
Trachoma
STD

Answer 10

Chlamydia trachomatis

Question 11

Birds

Parrots

Answer 11

Chlamydia psittaci

Question 12

Obligate intracellular growth
Southeastern Atlantic and south central states
Tick
Weil-Felix reaction

Answer 12

Rickettsia

Question 13

Cat-scratch fever

Answer 13

Bartonella

Question 14

Undulant fever

Answer 14

Brucella

Question 15

Q fever

Answer 15

Coxiella burnetii

Question 16

Tularemia

Answer 16

Francisella tularensis

Question 17

Meningitis, sepsis (zoonotic)

Answer 17

Listeria monocytogenes

Question 18

Rocky Mountain spotted fever, typhus

Answer 18

Rickettsia

Question 19

Goats and sheep
Intracellular growth
Undulant fever
Unpasteurized milk and cheese

Answer 19

Brucella

Question 20

Intracellular
Rabbit
Tularemia
Ulcer

Answer 20

Francisella tularensis

Question 21

Baby
Cold enrichment
Intracellular growth
Meningitis
Milk products
Motility
Undercooked meat

Answer 21

Listeria monocytogenes

Question 22

What are the hallmarks of Legionella infection?

Answer 22

Non-productive cough
Negative sputum Gram stain
Extrapulmonary signs (confusion, headache, and GI symptoms)

Question 23

What is an important risk factor for Legionella infection?

Answer 23

Immunocompromised

Question 24

What is one way to make a definitive diagnosis of Legionella infection?

Answer 24

Detection of antigens in urine

Question 25

What is the major virulence factor of Legionella?

Answer 25

Intracellular growth

Question 26

How would you confirm a Rocky Mountain Spotted Fever diagnosis?

Answer 26

Indirect immunofluorescence or latex agglutination procedures with a single diagnostic titer of 1:64

Question 27

What lab procedure would give a definitive diagnosis of syphilis?

Answer 27

Specific antibody test

Question 28

Why does Chlamydia not gram stain?

Answer 28

Its cell wall does NOT contain muramic acid

Question 29

What is the pathogenesis of Chlamydia?

Answer 29

Elementary body = extracellular * *non-replicating and NOT metabolically active * *infectious Reticulate body = intracellular * *replicating and metabolically active * *non-infectious

Question 30

What is the most common bacterial opportunistic infection in adult HIV patients?

Answer 30

Mycobacterium avium

Question 31

How is Bartonella quintana transmitted?

Answer 31

By body louse

Question 32

How is Bartonella henselae transmitted?

Answer 32

By fleas

Question 33

How is Bartonella bacilliformis transmitted?

Answer 33

By sand flies