What is the most likely pathogen?
a) Mycobacterium avium complex
b) Coxiella burnetii
c) Escherichia coli (Gram -ve)
d) Haemophilus influenzae
e) Legionella pneumophila
f) Strep pneumococcus
g) Mycobacterium tuberculosis
h) Mycoplasma pneumoniae
i) Pneumocystis carinii
j) Staphylococcus aureus
ANSWER
The correct answer is F
Explanation
Pneumococcal pneumonia most commonly presents as a segmental or lobar alveolar consolidation.
Pleural effusion can be found in 20-60% of cases. Cavitation is very uncommon with pneumococcal infection.
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