Answer:
Mycobacterium tuberculosis.
Explanation:
The causative agent of the tuberculosis is the bacteria Mycobacterium tuberculosis. This disease affects the lungs badly and later may get worse and can also affect the other parts of body.
The patient is suffering from the fever, hemoptysis, purulent sputum and night sweats have decreased. This indicates the medical condition of tuberculosis. The causative agent is Mycobacterium tuberculosis.
