25th February 2025

A 30-year-old woman presents with acute right knee pain and tenderness in the Achilles.

A 30-year-old woman presents with acute right knee pain and tenderness in the Achilles. She also feels feverish and tired. Three weeks previously, she suffered from a couple of days of diarrhoea and vomiting. Which organism is least likely to have caused this?

Select the SINGLE most appropriate option from the list below. Select ONE option only.