21st June 2024

A 54-year-old woman returns to your HIV clinic two years after disengaging from antiretroviral therapy

A 54-year-old woman returns to your HIV clinic two years after disengaging from antiretroviral therapy. She has lost weight and is complaining of right upper quadrant pain with diarrhoea over several weeks. She is jaundiced on examination and Murphy’s sign is negative. Her initial investigations show deranged liver enzymes, with markedly elevated bilirubin, alkaline phosphatase and gamma glutamyl transferase. A diagnosis of AIDS cholangiopathy is suspected.

Which of the following organisms is NOT a likely aetiology of this condition?

Select the SINGLE most appropriate explanation for these results from the list below. Select ONE option only.