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5 Written questions

5 Matching questions

  1. E. Coli (Biochemical)
  2. Yersinia Enterocolita
  3. Primary intestinal pathogens
  4. Erwinia and Pectobacterium
  5. Differential and Selective media
  1. a salmonella, shigella, and yerisinia
  2. b Plant pathogens
  3. c most commonly isolated species of Yersinia
    aucte enteritis, appendicitis, arthritis, erythema nodosum

    motile at 25c

    recovery at cold enrichment, CIN agar
  4. d Indole, and Methyl red
  5. e are useful for identification

5 Multiple choice questions

  1. nosocomia outbreaks
    ONPG (+)

    Pink to red pigment
  2. differentiaed by the ODC test
  3. causes diarrhea by adhereing to the surface of the intestinal mucosa, mostly seen in children
  4. CAP, BAP, large grayish smooth colonies and Beta Hemolytic or non hemolytic on BAP
  5. strains generally associated with two kinds of human disease; dearrheal syndromes and UTIs

5 True/False questions

  1. stoolsassociated with both diarrheal disease and UTIs


  2. Photorhabdus and Xenorhabdusdo not reduce nitrates to nitrites


  3. Citerobacter Kosermethyl red positive
    Citrate positve
    ferment lactose


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

    *caused by pili


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


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