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A 9 year old girl presents with 2 days of sore throat and fevers of 102oF...

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asked Apr 11, 2014 in Pediatrics by Rajesh Bahara

A 9 year old girl presents with 2 days of sore throat and fevers of 102oF. Physical exam reveals an erythematous pharynx with a white, creamy exudate covering the left tonsil. Palpation of the neck reveals an extremely tender left submandibular lymph node. Throat cultures were taken and reveal beta-hemolytic colonies on blood agar. Susceptibility analysis show growth is not inhibited by amoxicillin, and erythromycin. Growth is inhibited by bacitracin. Which of the following is the mostly likely causal organism?

a. Rhinovirus

b. Streptococcus pyogenes

c. Streptococcus agalactiae

d. Epstein-Barr virus

e. Candida albicans

1 Answer

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Best answer
b. Streptococcus pyogenes
answered Apr 11, 2014 by Rajesh Bahara

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