A child with no known congenital problems is diagnosed with inflammation of the heart valves. The medical history of the child is unremarkable except for a sore throat and fever six weeks prior, which the parents attributed to a common cold. The heart
valve inflammation is most likely due to
A) atypical pneumonia.
B) tuberculosis.
C) Corynebacterium diphtheriae.
D) Bordetella pertussis.
E) autoimmune complications of Streptococcus pyogenes.
Answer: E
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