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  • Question
  • Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease?


  • Options
  • A. Tetanus
  • B. Botulism
  • C. Diphtheria
  • D. Shigellosis

  • Correct Answer
  • Botulism 


  • Microorganisms and Disease problems


    Search Results


    • 1. Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes?

    • Options
    • A. The pathogen contains mycolic acid in its cell wall
    • B. The pathogen can live inside macrophages
    • C. Antibodies to the pathogen are protective
    • D. None of these
    • Discuss
    • 2. Fatalities following influenza infection are usually due to the

    • Options
    • A. dehydration
    • B. bacterial superinfection
    • C. damage to the heart muscle
    • D. formation of granulomas in the lung
    • Discuss
    • 3. Mucus helps in protecting against pathogens by

    • Options
    • A. lowering the pH
    • B. facilitating the growth of normal flora
    • C. blocking access and attachment of pathogens to mucosal surfaces
    • D. sequestering Iron
    • Discuss
    • 4. A major difference between EHEC and EPEC is

    • Options
    • A. EHEC secretes a Shiga-like toxin and EPEC does not
    • B. EHEC possesses a type III secretion system and EPEC does not
    • C. EPEC rearranges host cell actin and EHEC does not
    • D. EPEC passes through the placenta to infect the fetus and EHEC does not
    • Discuss
    • 5. Which of the following characteristic of the Rotavirus was important for the construction of the Rotashield vaccine?

    • Options
    • A. The possession of a segmented RNA genome
    • B. A limited number of capsule types
    • C. The ability of monkey Rotavirus strains to cause serious illness (diarrhea) in human beings
    • D. The ability of the Rotavirus to be transmitted faster
    • Discuss
    • 6. Prontosil is

    • Options
    • A. an effective antibacterial when used in animals
    • B. an effective antibacterial when used in in-vitro cultures
    • C. an effective antibacterial both in animals as well as in in-vitro cultures
    • D. not used as an antibacterial agent
    • Discuss
    • 7. Which of these cytokines is also known under the name cachectin?

    • Options
    • A. Interferon gamma
    • B. Interleukin 2
    • C. Tumor necrosis factor (TNF)
    • D. None of the above
    • Discuss
    • 8. Plastic implants can pose a serious nosocomial infection problem because

    • Options
    • A. phagocytes have trouble moving on the plastic surface
    • B. phagocytes have trouble engulfing bacteria embedded in a biofilm
    • C. infected implants usually have to be surgically removed
    • D. all of the above
    • Discuss
    • 9. Lactoferrin helps to protect against pathogens by

    • Options
    • A. sequestering Iron
    • B. blocking sebum production
    • C. lowering the pH
    • D. facilitating the growth of normal flora
    • Discuss
    • 10. All infections do not cause fever and all fevers are not due to infections which of the following is an example of non-infections cause of fever?

    • Options
    • A. Typhoid
    • B. Chicken pox
    • C. Rheumatic disease
    • D. Malaria
    • Discuss


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