2005/6/25: Over the course of 1 week, a 6-year-old boy develops 0.5- to 1.0-cm pustules on his face. During the next 2 days, some of the pustules break, forming shallow erosions covered by a honey-colored crust. New lesions then form around the crust. The boy's 40-yearold uncle develops similar lesions after visiting for 1 week during the child's illness.
Lab:
The Gram stain from a skin pustule showed gram positive cocci in clusters. The organism grew on sheep blood agar (SBA) and was catalase positive. What is the most likely microorganism?
