Gram Positive Bacteria

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Author:
kris10leejmu
ID:
194568
Filename:
Gram Positive Bacteria
Updated:
2013-02-16 20:45:19
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Microbiology Three
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Microbiology
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  1. What does Staphlyococcus affect in the body?
    common commensal organism of skin and mucous membranes of humans and animals
  2. Define commensal.
    deriving slight benefit without causing much harm
  3. Is Staphlyococcus pathogenic?
    no
  4. What kind of tissues does Staphylococcus have the capacity to invade?
    • abscesses, pustules
    • bacteremia
    • septicemia
  5. Define bacteremia.
    presence of bacteria in the blood stream
  6. Define septicemia.
    disease caused by the spread of bacteria and their toxins in the bloodstream
  7. Inflammatory response to Staphylococcus brings in _____.
    neutrophils
  8. What are the major factors in food poisoning in humans?
    enterotoxins
  9. What are the different infections caused by Staphylococcus?
    • pyoderma
    • mastitis
    • abscesses
    • arthritis
    • septicemia
    • UTI - urinary tract infections
  10. What is MRSA?
    • methicillin resistant Staphylococcus aureus
    • resistant to many commonly used antimicrobial drugs
    • more common in people but has been found in dogs, cats, horses, and cattle
  11. What are the gram positive bacterias?
    • Staphylococcus
    • Streptococcus
    • Micrococcus
    • Enterococcus
    • Listeria (small rod)
    • Erysipelothrix (small rod)
    • Bacillus (large rod)
    • Clostridium (large rod)
  12. Where do we normally find Streptococcus in the body?
    • skin
    • mucous membranes of genital, upper respiratory, and digestive tracts
  13. Is Streptococcus pathogenic or non-pathogenic?
    both
  14. Does Streptococcus produce toxins?
    yes
  15. What is Streptococcus pyogenes?
    strep throat in people
  16. What are some other Streptococcus infections?
    • bovine mastitis
    • equine strangles
  17. What does equine strangles affect?
    • submandibular swelling and abscessation
    • lymph node infection
  18. What are the symptoms of equine strangles?
    • fever
    • anorexia
    • mucopurulent
    • nasal discharge
    • may infect guttural pouches
  19. What is Streptococcus equi?
    equine strangles
  20. What are guttural pouches?
    • air filled
    • extend of Eustachian tubes
    • connect middle ear to pharynx
    • equalize pressure in the ear
  21. How is equine strangles transmitted?
    on fomites and other horses
  22. Is there a vaccine for equine strangles?
    yes, but it's not 100% effective
  23. What is Streptococcus zooepidemicus?
    • genital infection in mares and cows
    • naval infection - arthritis in foals
    • epididymitis in stallions
    • infects wounds of horses
  24. Where is Micrococcus luteus found?
    in soil, dust, water, and air
  25. Where is Micrococcus normally found?
    part of normal skin flora, amy be found in mouth and upper respiratory tract
  26. Where is Entercoccus faecalis found?
    commensal organism in GI tracts of mammals
  27. Where is Listeria found?
    • soil, feces, genital secretions, moldy hay
    • raw and processed foods
  28. What is listeriosis in ruminants?
    • "circling disease"
    • meningoencephalitis
    • cranial nerve dysfunction
    • microabscesses of brainstem
    • transmissible to people
    • rotting vegetation, silage
  29. Is there a vaccine for listeriosis?
    yes
  30. Which animal does Erysipelothrix affect the most?
    swine
  31. Where is Erysipelothrix found?
    on mucous membranes
  32. How is Erysipelothrix transmitted?
    by direct contact and fomites
  33. What are the different forms of Erysipelothrix?
    • acute septicemia
    • skin - diamond skin disease of abdomen, ears, and snouth
    • endocarditis and arthritis
  34. Is there a vaccine available for Erysipelothrix?
    yes
  35. Is Erysipelothrix zoonotic?
    yes - skin wounds - direct contact and MLV
  36. What are the different types of Bacillus?
    • Bacillus anthracis
    • Bacillus cereus
    • Bacillus subtilis
  37. What is Bacillus anthracis?
    cutaneous, gastrointestinal, pulmonary forms
  38. Where is Bacillus cereus found and what can it cause?
    • found in soil
    • can cause food-born illness
  39. Where is Bacillus subtilis found?
    in soil
  40. What is Clostridium chauvoei?
    blackleg in cattle
  41. How do cattle get blackleg?
    ingestion, wounds/castration/dehorning
  42. What is blackleg in cattle?
    blackened muscle tissue, gas production
  43. Is there a vaccine available for blackleg?
    yes
  44. What is Clostridium septicum?
    malignant edema
  45. What is Clostridium perfringens?
    • enterotoxemia
    • hemorrhagic gastroenteritis in dogs
  46. What is Clostridium botulinum?
    botulism
  47. What is Clostridium hemolyticum?
    red water disease in cattle
  48. What is Clostridium tetani?
    tetanus

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