12th March 2024

A 54-year-old female with a previous history of rheumatic heart disease presents to your clinic with lethargy and night sweats.

A 54-year-old female with a previous history of rheumatic heart disease presents to your clinic with lethargy and night sweats. On auscultation, you hear a pansystolic murmur in the mitral region which was not present before. Which of the following is most likely to be the aetiological organism causing this?

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