25th August 2023

A 6-year-old child is brought to the surgery with a rash that began around the mouth and has spread to the arms

A 6-year-old child is brought to the surgery with a rash that began around the mouth and has spread to the arms. The lesions began as red sores that quickly ruptured to form yellowish-brown crusts. The child is afebrile, and there is no significant past medical history.

What is the most common causative organism?