A 57-year-old male farmer sees his physician complaining of fever, night sweats, and lethargy that come and go over the past three months. The patient's history reveals that he raises sheep for wool and meat and goats for milk

The physician suspects undulant fever. What is the optimal specimen(s) for culture of this suspected organism?
A) Lymph node biopsy
B) Blood
C) Bone marrow
D) All of the above
E) B and C

D