Group A carbohydrate of Str. pyogenes cross reacts with human_________________?
Correct answer: C. Cardiac valves
- A. Synovial fluid
- B. Myocardium
- C. Cardiac valves
- D. Vascular intima
Explanation
The group A streptococcal carbohydrate contains N-acetylglucosamine, which can cross-react with components of cardiac valves in rheumatic heart disease. Myocardial cross-reactivity is more classically associated with antibodies against streptococcal M protein.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Immunology
90 free Immunology MCQs from Microbiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Microbiology questions like this
Microbiology is on 6 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Immunology questions
Inactivated microorganisms are used in the manufacture of which of the following________________?
The predominant immunoglobulin in saliva is_______________?
The chemotactic factor is______________?
In T.B cell mediated immunity is by_______________?
Tuberculin test screens for_____________?
Example of immune complex hyper-sensitivity reaction is______________?