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Which bacterium is the primary cause of pulmonary tubercu... | QuestionStock

Representative image for question: Which bacterium is the primary cause of pulmonary tuberculosis in humans?

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Health

Which bacterium is the primary cause of pulmonary tuberculosis in humans?

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Which bacterium is the primary cause of pulmonary tuberculosis in humans?

Options:

Mycobacterium tuberculosis
Streptococcus pneumoniae
Haemophilus influenzae
Legionella pneumophila

Correct answer: Mycobacterium tuberculosis

Explanation: Mycobacterium tuberculosis is the causative agent of tuberculosis in humans; Robert Koch identified it in 1882 and it remains the principal cause of pulmonary TB worldwide.

Created 2026-03-10T17:32:59.807Z. Updated 2026-03-10T17:32:59.807Z.