Medical Microbiology

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1. When should E.Coli be Isolated?

  • It is isolated between 22:00-02:00, and sent to a qualified reference lab.
  • Doctors isolate it from the tool in the ptient is a traveller; immunocompromised; and during outbreaks. The stool sample is sent to a lab.
  • Doesn't usually require a doctor. If in hospital, samples are taken if the patient has persistent diarrhoea; is traveller; children/elderly; immunocompromised; and during an outbreak. It is isolated from stool and sent to a qualified reference lab.
  • Doesn't usually require a doctor. If in hospital, samples are taken if the patient has persistent diarrhoea; isn't travelling; children; immunocompromised; and during an outbreak. It is isolated from stool and sent to a reference lab.
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Other questions in this quiz

2. Where in the world/in the body does Wuchereria bancrofti cause illness?

  • It causes infections by entering the bloodstream and multiplying in the lymph system - causing leg swelling. It is most commonly found to occur in Asia, Africa, and the Americas - due to heightened mosquito populations.
  • It causes infections by entering the bloodstream and multiplying in the lymph system - causing leg and/or scrotum swelling. It is most commonly found to occur in Asia, Africa, and the Americas - due to heightened mosquito populations.
  • It causes infections by entering the lymph system and multiplying - causing leg and/or scrotum swelling. It is most commonly found to occur in Asia, Africa, and the Americas - due to heightened mosquito populations.
  • It causes infections by entering the bloodstream and multiplying in the lymph system - causing leg and/or scrotum swelling. It is most commonly found to occur in Europe, America, and Eastern Asia.

3. What lab techniques are used to detect E.Coli?

  • Specific enzyme immunoassays: directly from stool, 73-90% specificity, is expensive. Also, PCR assay for Shiga toxin, DNA Probes, and Multiplex PCR Assays (these are not widely available)
  • Serotype enzyme immunoassays: directly from stool, 73-100% specificity, is expensive. Also, PCR assay for Shiga toxin, DNA Probes, and Multiplex PCR Assays (these are not widely available)
  • Enzyme immunoassays: directly from stool, 80-100% specificity, is expensive. Also, PCR assay for Shiga toxin, DNA Probes, and Multiplex PCR Assays (these are not widely available)
  • Shiga enzyme immunoassays: directly from stool, 60-100% specificity, is expensive. Also, PCR assay for Shiga toxin, DNA Probes, and Multiplex PCR Assays (these are not widely available)

4. Who is susceptible to Wuchereria bancrofti?

  • People living in areas where mosquitos are prominent (e.g. Anopheles mosquitos). Also, there has been a proven mild genetic link - as the regulation of the infection depends on the patient's immune system.
  • People living in Africa and Asia. Also, there has been a proven mild genetic link - as the regulation of the infection depends on the patient's immune system.
  • People living in areas where mosquitos are prominent (e.g. Anopheles mosquitos). Also, children and the elderly/immunocompromised
  • Men living in areas where mosquitos are prominent (e.g. Anopheles mosquitos). Also, there has been a proven mild genetic link - as the regulation of the infection depends on the patient's immune system.

5. Which organisms cause Wuchereria bancrofti infections?

  • The Wuchereria bancrofti worm, of which the adults cause lymphatic filariasis.
  • The Wuchereria bancrofti nematode (worm), of which the adults cause lymphatic filariasis.
  • The Brugia malayi nematode (worm), of which the adults cause lymphatic filariasis.
  • The Wuchereria bancrofti nematode (worm), of which the young worms cause lymphatic filariasis.

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