UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 1195
Question:
A 12 year old boy develops a blisters, pustules, and yellowish crusts on his supper arm. The crust is removed and a gram stain is performed of the under-surface of the crust. Culture confirms streptococcal infection.
Infection of the epidermal layers of skin by a direct streptococcal infection is a characteristic feature of

a) Impetigo
b) erythema infectiosum
c) Cellulitis
d) Scarlet fever
e) Toxic shock