Which of the following cross-reacts with cell wall carbohydrate of Streptococcus pyogenes?
Answer: A
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Which of the following microorganism causes lesions in the form of abscesses?
Answer: A
Staphylococcus aureus causes localized infections in which the characteristic lesion is a walled-off fort called the abscess— a cavity filled with pus cells (neutrophils), dead tissue, and bacteria
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All of the following are the characteristics of Streptococcus pneumoniae, EXCEPT?
Answer: D
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Which of the following test indicates the susceptibility to streptococcal pyrogenic exotoxin?
Answer: B
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What are the different infections caused by Group A Streptococcus spp
Answer: A
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Which of the following is NOT the virulent factor, an important antigenic property of S. pyogenes?
Answer: A
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Scarlet fever is similar to the pharyngitis in all respects.
Answer: B
Scarlet fever is similar to the pharyngitis except for the skin rash that appears because of the erythrogenic toxin.
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Puerperal fever is a streptococcal infection of the _____________
Answer: C
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The possible pathogen for the above disease condition is..................
Answer: B
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Which of the following immunity is protective against infection by S.pyogenes?
Answer: A
The only type of immunity that is protective against infection by S. pyogenes is humoral immunity: antibodies against M proteins act as opsonins, enhancing phagocytosis of the streptococci.
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