Aerobic curved motile Gram-negative bacteria (no axial filament polar filament) Non-motile Gra

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Aerobic curved motile Gram-negative bacteria (no axial filament polar filament) Non-motile Gra
2014-11-04 12:08:53
Test Two
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  1. C. jejuni
    • gastroenteritis
    • --> causes a lot of diarhea, highly infectious
    • --> fecal oral spread
    • --> sometimes, a hemmorhage in the GI tract forms
    • --> can cause protein and fluid loss
  2. H. pylori
    • duodenal ulcers that are infectious
    • five species that differ on genetic analysis
  3. Aerobic, Gram-negative rods and cocci
    a few saprophytes; a lot of bacteria that cause problems with living platnts
  4. Pseudomonas sp.: __

    • P. aerogenosa: common skin inhabitant that produces toxin on a cut, giving green hue
    • problems with people burned 60-70% of their body 
    • has a capsule like structure that is not affected by immune system
  5. Agrobacterium tumefaciens
    plant stem and root tumors

    • cause large growth on stem of plant. Reduction of xylen and phloem of plant. Rots and plant dies.
    • some tumors on roots--> water not getting through--> weakening
  6. Bordetella pertussis
    • Whooping cough
    • great bacteria
    • very little variety in terms of genetics so that every vaccine against it is really effective
    • highly infectious and causes serious problems for three reasons: 
    • 1) sticks to respiratory lining (glycocalyx and fimbriae that sticks to it)
    • 2) for resp cells that are ciliated, it paralyzes cilia; things that get down stay down because of this
    • 3) if its not bad in respiratory tract, it secretes potent cytotoxin; secreted by cell--> kills cell that bacterial cell is associated with; then, it continues to randomly destroy cells (mechanism works by shutting down protein synthesis)
  7. Legionella pneumophilia
    • Legionaire's disease: fancy bacterial pneumonia
    • described in 1976
    • bacterium causes pneumonia
    • rapid onset
    • a heavy dose differentiates it from other pneumonia and a dose that happens repeatedly
    • static populations get this today
    • in nursing homes, geriatric facilities, due to immobile individuals sitting under vent getting exposed
    • this bacteria is in ACs
    • specific humidity range
  8. Neisseria gonorrhoea
    • gonorrhea
    • bacteria can secrete enzymes that allow them to get through mucous membranes so bacteria can set up infection
    • immune system tries to get rid of it, but it has a series of proteins that allow it to live in a lysozome; can live and thrive
    • deregulates it so it is not an effective WBC; won't attack bacteria

    bacteria are highly immunogenic. It makes immunity against it

    reinfection can occur as much as possible
  9. Enterobacteria
    • E.coli: digest and break down material in gut; can activate certain drugs
    • once cell type you have the most of is e. coli
    • toxins: ST toxin and CT toxin

    ST toxin: very effective colonizers of GI tract--> diarrhea--> hemmorage--> die

    facultative anaerobes
  10. K. pneumoniae:
    • opportunistic pneumonia and bacteremia
    • exceedingly rare in individual who are not homeless, IV users, etc.
  11. P. vulgaris
    • peritrichous: urinary tract infections, pimple (domydomes) 
    • rapidly moves in moist tissue
  12. Salmonella typhi
    • typhoid fever
    • respiratory tract disease with high cyclic fevers
    • run through large number of those living in close proximity
    • one of the diseases that has asymptomatic carriers (can carry but never get)
  13. S. enterica and shigella
    • one prob: fecal oral spread-> unique toxins that lead to fluid loss, diarrhea, etc. 
    • have cytotoxins that can lead to hemmorhage
    • bloody diarrhea
    • strain determines success of survival
  14. Serratia marcesscens
    • opportunistic; mastitis in cows
    • infections in utters
  15. Serratia dysenteriae
  16. Shigella flexneri
  17. Yersinia pestis
    • bubonic plague is somewhat common
    • most commonly associated with rats and mice and fleas
    • bacteria in through bite of flea or rodent--> travels through body and fever, systemic infection, major diarrhea, fluid buildup in limbs--> hyperactive lymph nodes

    bubo: hyperactive lymph node; once it shows up, you can't fix it

    can be aerosilized

    pneumonic play of disease= 100% death
  18. Yersinia enterocolitica
    bacteria ends up in GI tract with acids, etc. 

    people throw up bile and blood
  19. Vibrionaceae
    Vibrio cholerae: cholera

    • small check shaped; oral spread
    • readily treated with IV and antibiotics

    caught early--> survival rates= 90%

    • secretes potent toxins
    • --> water goes out of body
    • --> individuals with this can lose up to 20% of body weight
    • --> only a problem if treatment isn't sought
    • --> no real digestive effect

    protein rich metabolism--> rice water stool

    • treatment--> recovery
    • no treatment--> dehydration (water comes out from everywhere); weird products in the blood

    die from dehydration
  20. Hemophilus
    in general can break down tissue effectively

    once in CNS--> rapid infection

    takes immune system a long time to deal with it
  21. H. ducreyi
    • soft chacroid (a venereal disease)
    • infectious STD: small cankers on genitalia (soft crankoids; large)
    • causes disease that is not transmitted
    • common in children and caused by contact

    causes nonsexually trasmitted ulcerative lesions in children as well (no sexual contact but may have gotten a cut on the leg or came in contact with someone with it)