Question

Both Mycobacterium tuberculosis and Streptococcus pneumoniae
A.are acquired by inhalation
B. have cell walls that contain a high content of mycolic acids
C. have polysaccharide capsules
D. stay in the lung and rarely, if ever, enter the bloodstream

Answer 1

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A) are required by inhalation

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Streptococcus pneumoniae is the most frequent etiologic agent of bacterial pneumonia and S.

pneumoniae pneumonia develops when encapsulated (virulent) .

pneumoniae are inhaled into the alveoli of susceptible host, multiply rapidly and cause an inflammatory response.

Serum and phagocytic cells pour into the air sacs of the lungs causing difficulty in breathing and sputum production .

On the other hand, the pulmonary form of tubercle bacilli after inhalation multiplies within the lower respiratory tract.

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