CQWas Recently Exposed to Group a Hemolytic Streptococcus and Subsequently

Multiple Choice

C.Q.was recently exposed to group A hemolytic Streptococcus and subsequently developed a pharyngeal infection.His clinic examination reveals an oral temperature of 102.3°F,skin rash,dysphagia,and reddened throat mucosa with multiple pustules.He complains of sore throat,malaise,and joint stiffness.A throat culture is positive for Streptococcus,and antibiotics have been prescribed.The etiology of C.Q.'s disease is

A) a sore throat.
B) streptococcal infection.
C) genetic susceptibility.
D) pharyngitis.