Microbiology Fever of unknown origin in a farmer who raises goats would most likely be caused by which of the following organisms? A Brucella melitensis B Clostridium novyi C T. pallidum D Histoplasma capsulatum 💡 Explanation Fever of unknown origin in a farmer who raises goats would most likely be caused by which of the following organisms? ✓ Correct Answer: A. Brucella melitensis