A 14-month-old boy was referred from another hospital for an infected ventriculo-peritoneal shunt. The baby was born prematurely and had meningomyelocele and hydrocephalus. He underwent surgery for his first shunt when he was seven weeks old. One week before the transfer, he was admitted to the hospital for a fever.

Needle aspiration of the shunt revealed a cloudy fluid, which was positive for Gram-positive cocci. What is the most likely pathogen responsible for his condition? *This case is from the Editorial Team of Docplexus and is meant for educational purposes only. Source: LUMEN The answer is posted in the comment section below!