Question

What advantage might biofilm production confer on the S. aureus inside the catheter?

Short answer

The main advantage of the biofilm production confer on S. aureus inside the catheter is the increased cell surface density that protect the bacteria from antibiotics action.

Step-by-step solution

Introduction

Presence of biofilm is advantegeous for bacteria because biofilm helps its survival under different unfavourable conditions.

Explanation

S. aureus is found to be the main cause of hospital-acquired infections. They form biofilm by increasing the density of their cell surface to become resistant to phagocytosis and antimicrobials. Also forming biofilm in catheter helps them not to sweep away by the urine flow.