A 30-year-old Canadian immigrant farmer consults with symptoms of night sweats, low-grade fever, cough, and fatigue. He does not smoke. He has a history of asthma. The chest x-ray required for immigration was normal five months ago. He received the BCG vaccine as a child. The skin test for tuberculosis is positive at 15 mm. The most likely diagnosis is?
Influenza
Brucellosis
Aspergillosis
Mycobacterium bovis
Mycobacterium tuberculosis
Ans:
d. Mycobacterium bovis