Rheumatic fever is caused by ________.
A) a primary streptococcal infection with Streptococcus pyogenes
B) a combination of infection with Streptococcus pyogenes and the rheumatic fever virus
C) a secondary streptococcal infection with a different type of streptococcus
D) an immunological cross-reaction in which anti-streptococcal antibodies target the heart
E) both a primary viral infection and a secondary streptococcal infection
Correct Answer:
Verified
Q5: The most common type of virus leading
Q9: Which of the following is not true
Q10: Normal biota of the upper respiratory tract
Q11: Untreated streptococcal pharyngitis can lead to all
Q12: Streptococcal pharyngitis involves all of the following
Q13: The bright red rash and fever of
Q15: Normal biota of the lower respiratory tract
Q16: What features of the respiratory system protect
Q17: Normal biota of the upper respiratory tract
Q18: Superantigens _.
A)include streptolysin O
B)include erythrogenic toxin
C)induce production
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