Enteric Bacilli 2

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Enteric Bacilli 2
2010-07-13 11:25:13
Microbiology Enteric Bacilli

Enteric bacilli questions
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  1. Causative agent, bacterial shape and Gram stain reaction for Campylobacter gastroenteritis:
    • Campylobacter jejuni
    • curved bacilli w/ flagella
    • Gram-negative
  2. What are the reservoirs for Campylobacter gastroenteritis?
    Poultry, cats, dogs, rabbits, pigs, cattle and minks.
  3. How is the Campylobacter gastroenteritis aquired?
    Fecally contaminated food, water or milk.
  4. What are the signs and symptoms of Campylobacter gastroenteritis?
    • Bleeding lesions
    • Inflammation of the jejunum, ileum and colon
    • Malaise, fever, abdominal pain, bloody diarrhea
  5. What is the causative agent for Peptic ulcers?
    Helicobacter pylori
  6. Has a slightly helical shape?
    Peptic ulcer
  7. What are some factors that can aggravate a peptic ulcer?
    • Stress
    • Alcohol
    • Spicy foods
    • Excessive stomach acids
  8. Where is the main source of infection for peptic ulcers?
    In the mucous membranes of stomach duodenum.
  9. What is the causative agent for Shigella?
    Shigella dysenteriae
  10. How is Shigella transmitted?
    Fecal/Oral and person to person
  11. Symptoms: abdominal cramps, watery stool w/ mucous and blood
    Shigella symptoms
  12. How does the Shigella toxin affect the intestinal nerves and which villi are invaded?
    It damages the lining and invades the large intestine
  13. What are the most common infections associated with Listerosis and what antibiotics are used for treatment?
    • Meningitis and bacteremia
    • Penicillin and erythromycin