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Mo W 01
 

Mo W 01

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  • MAY 19
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Mo W 01 Mo W 01 Presentation Transcript

  • Escherichia coli
    • Gram –
    • Rod, specialized fimbriae to attach to intestinal cells
    • Common intestinal bacterium
    • Facultative anaerobic
    • Mostly nonpathogenic
    • Few strains are harmful
      • Enterotoxigenic E. coli (ETEC)
      • Enteroinvasive E. coli (EIEC)
      • Enterohemorrhagic E. coli (EHEC)
      • Shiga-toxin E. coli (STEC)
      • O157:H7
    • Indicator organism for fecal contamination of water or food
    Colony Morphology Courtney Willard, Rochester
  • Pseudomonas aeruginosa
    • Gram-
    • Rod, unique pigmentation (blue, green),
    • single flagellum, pili
    • Soil, water, humans, animals, plants,
    • sewage, hot tubs, and hospitals
    • Obligate aerobe
    • Opportunistic, immunocompromised,
    • cystic fibrosis
    • Biofilms in freshwater habitats: food source
    • Bioremediation: digest petroleum byproduct: hydrocarbons
  • Salmonella enterica serovar enteritidis
    • Gram-
    • Rod, flagellated, fimbriae
    • Facultative aerobe
    • Egg-associated salmonellosis, infect ovaries of otherwise healthy hens
    • Strains resistant to ampicillin and streptomycin
    • Normal flora of reptiles and amphibians, contaminated water
    http://textbookofbacteriology.net/salmonella.html