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Questions and Answers
What is the primary mechanism of immune evasion used by Streptococcus pyogenes in streptococcal pharyngitis?
What is the primary mechanism of immune evasion used by Streptococcus pyogenes in streptococcal pharyngitis?
- Production of erythrogenic toxin
- Activation of the complement system
- Production of streptolysins
- Resistance to phagocytosis (correct)
What is the primary cause of scarlet fever?
What is the primary cause of scarlet fever?
- Streptococcus pyogenes producing streptokinase
- Corynebacterium diphtheriae producing diphtheria toxin
- Erythrogenic toxin produced by lysogenized S. pyogenes (correct)
- Bordetella pertussis producing pertussis toxin
What is the primary mechanism of action of diphtheria toxin?
What is the primary mechanism of action of diphtheria toxin?
- Formation of a membrane of fibrin, dead tissue, and bacteria
- Damage to the walls of ciliated cells
- Activation of the complement system
- Inhibition of protein synthesis (correct)
What is the primary cause of otitis media?
What is the primary cause of otitis media?
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What is the primary characteristic of the paroxysmal stage of pertussis?
What is the primary characteristic of the paroxysmal stage of pertussis?
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What is the primary way that Mycobacterium tuberculosis is transmitted?
What is the primary way that Mycobacterium tuberculosis is transmitted?
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What is the main cell type that Mycobacterium tuberculosis infects?
What is the main cell type that Mycobacterium tuberculosis infects?
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What is the purpose of the cell-mediated immune response in tuberculosis?
What is the purpose of the cell-mediated immune response in tuberculosis?
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What is the name of the vaccine commonly used to prevent tuberculosis?
What is the name of the vaccine commonly used to prevent tuberculosis?
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What is the name of the type of tuberculosis that results from the spread of bacteria through the bloodstream?
What is the name of the type of tuberculosis that results from the spread of bacteria through the bloodstream?
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