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FMED - IDMM > Etiologic Agents > Flashcards

Etiologic Agents Flashcards

1
Q

C. Difficile Infection

A

C. difficile

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2
Q

Gastroenteriti s/Traveler’s Diarrhea

A
  • E.coli (EAEC, ETEC
  • Campylobacter
  • salmonella
  • shigella
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3
Q

Rotavirus

A

rotavirus

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4
Q

Hepatic Abscess

A

E.histolytica (Ameobic Liver Abcess)
*****
Bacterial Abscess
-E.coli, Klebs, Strep, Enterococcus, Bacteriodes - often polymicrobial

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5
Q

Helicobacter pylori associated infections

A

Helicobacter pylori

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6
Q

Common Cold

A
  • respiratory viruses
  • enterovirus (echovirus, coxsackievirus)
  • human metapneumovir us
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7
Q

Pharyngitis

A
  • Group A Streptococcus (streptococcus pyogenses)
  • other bacteria
  • respiratory viruses
  • other viruses
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8
Q

Otitis Media

A

2/3 patients-combined viral & bacterial

Service/persistent/refractory AOM:

  • S. pneumoniae
  • H. influenzae
  • Streptococcus pyogenes
  • Staphlococcus aureus
  • viruses:
  • Respiratory viruses, coronoviruses, human metapneumoevirus
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9
Q

Sinusitis

A

-Respiratory viruses (200x ore common than bacterial!)

Bacterial:

  • S. pneumoniae
  • H. influenzae
  • M. catarrhalis (less common)
  • anaerobes & microaerophilic Strep: associated dental disease
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10
Q

Croup

A
  • Parainfluenza virus type 1 (most common cause, cn also be caused by type 2, 3)
  • Coronaviruses
  • Measles
  • Enteroviruses
  • respiratory viruses
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11
Q

Pertussis

A

Bordella pertussis:

  • obligate human pathogen
  • fastidious Gram negative coccobacilli
  • requires specialized medium to grow incubation
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12
Q

influenza

A

Respiratory viruses

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13
Q

Acute bronchitis

A
  • Mycoplasma penuomoniae
  • Chlamydophila peumoniae
  • Bordetella pertussis
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14
Q

Acute exacerbation of chronic bronchitis

A
  • viruses
  • Haemophilus
  • S. pneumoniae
  • M.catarrhalis
  • Enterobacteriaceae
  • P.aeruginosa
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15
Q

Bronchiolitis

A
  • RSV

- other viruses

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16
Q

Community acquired pneumonia (pneumonia in a patient who is/has not recently been in hospital)

A
  • Neonate: E.coli, GBS, S.aureus, Pseudomonas, C. trachomatis
  • Infants: RSV, influenza, S.pneumoniae, H.influenzae, S. aureus
  • Children: as per infants plus parainfluenza, adenovirus, M. pneumoniae
  • Adults: Streptococcus pneumoniae
  • Atypical: Mycoplasma pneumoniae, Chlamydophila pneumoniae, Legionella pneumophila
17
Q

Healthcare associated/nosocomial pneumonia (pneumonia that develops 48 hours of more after admission)

A

Usual pathogens: Enterobacteriacae (E.coli, Klebisella, Serraito) & S. aureus Ventilator Associated Pneumonia (VAP): as above + Pseudomonas aeruginos

18
Q

Empyema

A
  • Anaerobes
  • Streptococcus anginosus group
  • Enterobacteriaceae (if chronic)
19
Q

Lung abscess

A

mouth flora: oral anaerobes, Eikenella corrodes, Streptococci spp

FMED - IDMM (4 decks)

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