28th May 2025

A 65-year-old woman has regular haemodialysis via a tunnelled dialysis catheter.

A 65-year-old woman has regular haemodialysis via a tunnelled dialysis catheter. At the start of a dialysis session, she develops a fever of 38 degrees and rigors. On examination, the catheter exit site is purulent and there is tenderness on palpation over the tunnels.

Which organism has most likely caused this presentation?