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Questions and Answers
What characteristic of the microorganism (M.O.) allows it to be transmitted through ice cream?
What characteristic of the microorganism (M.O.) allows it to be transmitted through ice cream?
- It is resistant to heat.
- It is capable of forming spores.
- It thrives in acidic environments.
- It resists freezing. (correct)
Where does the microorganism primarily multiply within the body?
Where does the microorganism primarily multiply within the body?
- In the Peyer’s patches. (correct)
- In the bloodstream.
- In the skin.
- In the liver.
What is the result of the M.O. passing into the blood through the lymphatics?
What is the result of the M.O. passing into the blood through the lymphatics?
- It causes immediate death.
- It results in persistent bacteraemia. (correct)
- It induces fever immediately.
- It leads to acute inflammation.
Which of the following statements about the microorganism's pathogenesis is true?
Which of the following statements about the microorganism's pathogenesis is true?
What is the primary mechanism of transmission for the M.O. mentioned?
What is the primary mechanism of transmission for the M.O. mentioned?
After multiplying in Peyer’s patches, where does the microorganism go next?
After multiplying in Peyer’s patches, where does the microorganism go next?
What does the persistence of bacteraemia after the M.O. enters the blood indicate?
What does the persistence of bacteraemia after the M.O. enters the blood indicate?
Which statement about the M.O.'s resistance is correct?
Which statement about the M.O.'s resistance is correct?
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Study Notes
Gram-Negative Bacteria
- Significant species include Neisseria gonorrhoeae (Gonococcus), responsible for gonorrhea, and Neisseria meningitidis (Meningococcus), which causes meningitis.
Enteroinvasive E. coli (EIEC)
- Associated with gastroenteritis and characterized by invasion of the large intestinal mucosa.
- Symptoms include fever, cramps, watery diarrhea, progressing to dysentery with scant, bloody stools.
- Commonly contracted from undercooked meat or contaminated hamburger, often referred to as "hamburger disease."
Urinary Tract Infections (UTIs)
- The predominant agent causing UTIs, particularly in females, leading to chronic infections and potential complications such as premature delivery due to endotoxins.
- The microorganism can withstand freezing conditions and has potential transmission routes, including through ice cream.
- Pathogenesis involves bacterial multiplication in Peyer’s patches, entering the bloodstream via lymphatics, leading to a persistent bacteremia lasting up to one week.
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