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5 Written questions

5 Matching questions

  1. Shigella
  2. stools
  3. Edwardsiella
  4. Yeresinia pestis
  5. EHEC
  1. a human carriers
    *cause dysentery
    improper sanitary conditions
    posses only the O antigen
    non motile
  2. b does not ferment sorbitol
    Serotyped for confirmation

    *Use Sorbitol MaConkey agar
  3. c 25-30C
  4. d should be screened for salmonella, shigella, campylobacter

    generally non lactose fermenters
  5. e clinically signficant human pathogen
    causes bacteremic and wound infections

5 Multiple choice questions

  1. strains generally associated with two kinds of human disease; dearrheal syndromes and UTIs
  2. most commonly isolated species of Yersinia
    aucte enteritis, appendicitis, arthritis, erythema nodosum

    motile at 25c

    recovery at cold enrichment, CIN agar
  3. gram-negative, non spore-forming, faculatively anaerobic rods
  4. are useful for identification
  5. serotype O157:H7
    hemolytic uremic syndrome
    *bloody diarrhea

5 True/False questions

  1. SalmonellaGI tracts of animals
    faculatively anaerobic rods
    clear colonies mac
    O, H antigens (primary identifiers)
    H2s slantVi antigen
    typhoids fever


  2. Uropathogenic E. Colimost common cause of urinary tract infections in humans

    *caused by pili


  3. P. Mirabillis P. Vulgaris (test)swarming on nonselective media such as BAP
    *smells like burned chocolate

    produces H2S and Urease


  4. K. oxytocaidole positive


  5. Enteropathogenic E. Coliinfantile diarrhea


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