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IDMM > Bacteria > Flashcards

Bacteria Flashcards

1
Q

Staphylococcus aureus

A

Ae G+C (clusters). SSTI, necrotizing fasciitis, osteomyelitis, endocarditis, toxic shock syndrome, CF pneumonia, diarrhea.

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2
Q

Staphylococcus epidermidis (CNS)

A

Ae G+C (clusters). Osteomyelitis, prosthetic infections, septicemia (IV catheters) via biofilm production.

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3
Q

Streptococcus pyogenes (GAS)

A

Ae G+C (pairs/chains). Pharyngitis, SSTI, necrotizing fasciitis, Rheumatic fever, toxic shock syndrome.

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4
Q

Streptococcus agalactiae (GBS)

A

Ae G+C (pairs/chains). Neonatal: pneumonia, meningitis, sepsis.

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5
Q

Streptococcus pneumonia

A

Ae G+C (pairs/chains). Community acquired pneumonia, meningitis, otitis media, conjunctivitis.

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6
Q

Streptococcus mitis

A

Ae G+C (pairs/chains). Meningitis, native valve endocarditis, bacteremia

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7
Q

Enterococci

A

Ae G+C (pairs/chains). UTI, endocarditis, ARO - nosocomial VRE

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8
Q

Corynebacterium diphtheria

A

Ae G+B (non-branching). Diphtheria (pharyngeal).

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9
Q

Corynebacterium jeikeium

A

Ae G+B (non-branching). Foreign-body infections, endocarditis, septicemia (IV catheters).

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10
Q

Listeria monocytogenes

A

Ae G+B (motile, non-branching). Meningitis/encephalitis, gastroenteritis, septicemia, pregnancy: abortion, stillbirth, preterm.

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11
Q

Peptostreptococcus spp.

A

An G+C (elongated, non-spore forming). Mixed aerobic/anaerobic bacteria infections (female pelvic, cutaneous, respiratory, oral).

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12
Q

Actinomyces israelii

A

An G+B (branching, filamentous). Oral/cervicofacial infections (draining of sinus tract), pelvic infections (IUD), abdominal infections.

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13
Q

Clostridium tetani

A

An G+B (straight). Tetanus.

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14
Q

Clostridium perfringens

A

An G+B (box-car shaped). Gas gangrene, bloody diarrhea, acute necrotizing GI infection.

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15
Q

Clostridium botulinum

A

An G+B (straight, curved). Botulism (flaccid paralysis).

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16
Q

Clostridium difficile

A

An G+B (straight). Diarrhea (antiobiotics or hospital acquired). ARO.

17
Q

Enterobacteriaceae: Escherichia coli

A

Ae G-F (bacilli). Neonate meningitis, UTI, GI.

18
Q

Enterobacteriaceae: Salmonella spp.

A

Ae G-F (bacilli). GI, enteric fever, bacteremia.

19
Q

Enterobacteriaceae: Enterobacter spp.

A

Ae G-F (bacilli). UTI, blood infections, nosocomial infections.

20
Q

Enterobacteriaceae: Proteus spp.

A

Ae G-F (bacilli). UTI, blood infections, nosocomial infections.

21
Q

Vibrio cholera

A

Ae G-F (bacilli). Cholera.

22
Q

Moraxella catarrhalis

A

Ae G-NF (diplococci). Community acquired pneumonia.

23
Q

Pseudomonas aeruginosa

A

Ae G-NF (bacilli, metallic sheen, grape-like odor, warmth and moist environments). Ventilator acquired pneumonia, otitis externs, CF pneumonia, UTI.

24
Q

Haemophilus influenza

A

Fastidious G-CB (short rods, satellites). Meningitis, epiglottitis, conjunctivitis, otitis media, pneumonia.

25
Q

Neisseria meningitidis

A

Fastidious G- (diplococci). Meningitis.

26
Q

Neisseria gonorrhea

A

Fastidious G- (diplococci). Pharyngitis, gonorrhea, conjunctivitis.

27
Q

Bacteroides fragilis

A

An G-B. Abscesses throughout body, bacteria, aspiration pneumonia, SSTI.

28
Q

Helicobacter pylori

A

Spirochete (G-). Duodenal and gastric ulcers.

29
Q

Treponema pallidum

A

Spirochete (non G-stain). 1’ syphilis: painless chancre. 2’ syphilis: myalgia, headache, fever, rash. 3’ neurosyphilis: general paralysis, aortic lesions, heart failure. Congenital syphilis: facial and tooth abnormalities.

30
Q

Mycobacterium tuberculosis (TB)

A

Acid fast bacilli (Ziehl-Neelson staining required for waxy cell membrane). Slow growing, fastidious. Survive in alveolar macrophages, carried to lymphatics to start new foci of infection. Primary, reactivation, or disseminated disease.

31
Q

Mycobaterium avium complex (MAC)

A

Acid fast bacilli (Ziehl-Neelson staining required for waxy cell membrane). Slow growing, fastidious. Inhibits lysosome-phagosome fusion. Opportunistic infection in immunocompromised hosts, may disseminate in AIDS.

32
Q

Mycoplasma hominis, Mycoplasma genitalium (genital mycoplasma)

A

Non-G stain (no cell wall, beta-lactam resistant). Non-gonococcal urethritis in males.

33
Q

Mycoplasma pneumoniae

A

Non-G stain (no cell wall, beta-lactam resistant). Trigger formation of RBC agglutinins. Atypical pneumonia, dermatological involvement, cardiac and neurologic complications.

34
Q

Chlamydia trachomatis

A

Obligate IC. Complicated life cycle, inhibits phagosome-lysosome formation. Urethritis, Epididymitis, proctitis, cervicitis, pelvic inflammatory disease, conjunctivitis, lymphogranuloma venereum. Infant: conjunctivitis, pneumonitis.

35
Q

Chlamydophila psittaci

A

Obligate IC. Vertebrate vector (birds). Atypical pneumonia.

36
Q

Rickettsia rickettsii

A

Obligate IC. Small, G-. Tick vector (Dermacentor spp.). Cell to cell spread (hundreds of contiguous infected epithelial cells). Rocky mountain spotted fever (fever + rash).

IDMM (6 decks)

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