A pharyngeal culture is taken from a 13-year-old male patient presenting to the ER with fever, painful cervical lymph nodes, purulent tonsillar exudate, and difficulty swallowing. A blood agar culture plate shows complete hemolysis around Streptococcus pyogenes bacterial colonies. The patient is given a prescription for erythromycin. The diagnosis in this case is

A pharyngeal culture is taken from a 13-year-old male patient presenting to the ER with fever, painful cervical lymph nodes, purulent tonsillar exudate, and difficulty swallowing. A blood agar culture plate shows complete hemolysis around Streptococcus pyogenes bacterial colonies. The patient is given a prescription for erythromycin. The diagnosis in this case is

A pharyngeal culture is taken from a 13-year-old male patient presenting to the ER with fever, painful cervical lymph nodes, purulent tonsillar exudate, and difficulty swallowing. A blood agar culture plate shows complete hemolysis around Streptococcus pyogenes bacterial colonies. The patient is given a prescription for erythromycin. The diagnosis in this case is



A. a group A beta-hemolytic streptococcal throat infection.


B. a methicillin-resistant Staphylococcus aureus skin infection.


C. tuberculosis with drug-resistant Mycobacterium tuberculosis-positive sputum.


D. meningitis due to Neisseria meningitidis-positive cerebrospinal fluid.



Answer: A


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