What is the most common causative agent of community-acquired pneumonia in adults?

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Quizplus · Accepted Answer

Streptococcus pneumoniae is the most common causative agent of community-acquired pneumonia in adults, accounting for approximately 50% of cases. Influenza virus and Mycoplasma pneumoniae are also common causes of community-acquired pneumonia, but not as frequent as Streptococcus pneumoniae. Klebsiella pneumoniae is more frequently associated with hospital-acquired pneumonia, and Streptococcus pyogenes is more commonly associated with pharyngitis and skin infections.

What Is the Most Common Causative Agent of Community-Acquired Pneumonia