题目内容

Tuberculin test is positive, while the result did not demonstrate any acid-fact bacteria (AFB) in a good sputum sample, what would it mean?

A. the individual definitely does not have active disease, it is an immunological cross-reaction
B. the individual has active TB now, but has not had it in the past
C. he has received BCG
D. the individual has been infected but has no active disease
E. either C or D is correct

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How is Mycobacterium tuberculosis grown

A. the footpad of the armadillo
B. anaerobically on nutrient broth agar
C. in 5% carbon dioxide at room temperature
D. in 5% carbon dioxide at 37 degrees on Lowenstein-Jensen medium
E. In cultures of human macrophages

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The most common way in which tuberculosis is acquired is via the

A. Skin
B. Gastrointestinal tract
C. Respiratory tract
D. Genital tract
E. Nasal tract

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Disease manifestations in TB are largely the result of which of the following

A. cytotoxicity
B. immunosuppression
C. cellular immune response
D. antigenic cross reactivity

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Which of the following are virulence factors/mechanisms for Mycobacterium tuberculosis

A. cytotoxin
B. superantigen toxin
C. antigenic variation
D. spores
E. intracellular growth

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Tuberculin test is positive, while the result did not demonstrate any acid-fact bacteria (AFB) in a good sputum sample, what would it mean?

A. the individual definitely does not have active disease, it is an immunological cross-reaction B. the individual has active TB now, but has not had it in the past C. he has received BCG D. the individual has been infected but has no active disease E. either C or D is correct

How is Mycobacterium tuberculosis grown

The most common way in which tuberculosis is acquired is via the

Disease manifestations in TB are largely the result of which of the following

Which of the following are virulence factors/mechanisms for Mycobacterium tuberculosis

A. the individual definitely does not have active disease, it is an immunological cross-reaction
B. the individual has active TB now, but has not had it in the past
C. he has received BCG
D. the individual has been infected but has no active disease
E. either C or D is correct