Podcast
Questions and Answers
What is the size range of Salmonella bacilli?
What is the size range of Salmonella bacilli?
- 5-7um
- 3-5um
- 1-3um
- 2-4um (correct)
Which of the following symptoms is NOT associated with suspected typhoid fever?
Which of the following symptoms is NOT associated with suspected typhoid fever?
- Diarrhea
- Headache
- Chest pain (correct)
- Gastrointestinal bleeding
Which characteristic is true for Salmonella enterica?
Which characteristic is true for Salmonella enterica?
- It is poorly pathogenic to humans.
- It is a sporeformer.
- It primarily affects cold-blooded animals.
- It is pathogenic for humans. (correct)
What is the required fever duration to consider an individual as suspected of having typhoid fever?
What is the required fever duration to consider an individual as suspected of having typhoid fever?
Which method is used for the direct detection of typhoid fever?
Which method is used for the direct detection of typhoid fever?
What type of bacterium is Salmonella classified as?
What type of bacterium is Salmonella classified as?
Which of the following is a serovar pathogenic to humans?
Which of the following is a serovar pathogenic to humans?
What is the morphology of Salmonella?
What is the morphology of Salmonella?
Which of the following is NOT a recommendation for suspected typhoid fever cases?
Which of the following is NOT a recommendation for suspected typhoid fever cases?
Which type of anaerobic condition does Salmonella thrive in?
Which type of anaerobic condition does Salmonella thrive in?
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Study Notes
Salmonella
- Gram-negative bacilli
- Non-encapsulated, Non-sporeforming
- Measures 2-4um x 0.6um in size
- Motile rods with peritrichous flagella
- Facultative intracellular anaerobe
- Pathogenic for humans
Salmonella Classification
- Salmonella bongori: Primarily infects cold-blooded animals and has low pathogenicity in humans.
- Salmonella enterica: Known for causing infections in humans, with three primary serovars:
- Salmonella typhimurium: Associated with gastroenteritis.
Suspected Typhoid Fever Case
- Suspected typhoid fever case is defined as an individual who:
- Lives in or has traveled from tropical or subtropical areas.
- Presents with fever lasting more than 5 days.
- Fever documented at > 38ºC.
- Experiences any of the following symptoms:
- Headache
- Diarrhea
- Body malaise/weakness
- Abdominal distention/pain
- Gastrointestinal bleeding
- Changes in orientation/confusion
Laboratory Tests for Typhoid Fever
- Direct Detection Method:
- Culture and Isolation of Salmonella
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