Staph aureus pneumonia can be which of the following?

Staph aureus pneumonia can be which of the following?

• A. Both community-acquired and hospital-acquired
• B. Only community-acquired
• C. Only hospital-acquired
• D. Neither

Answer: (A)

Staph aureus pneumonia shows that a single organism can cause infections in multiple care settings, not just in the hospital. It can present in the community—often after a viral illness like influenza or in situations where virulent strains (including those producing PVL) cause severe, sometimes necrotizing pneumonia. It can also be acquired in the hospital, where MRSA is a well-known cause of nosocomial and ventilator-associated pneumonia. Because it occurs in both environments, the correct view is that pneumonia due to Staph aureus can be both community- and hospital-acquired.

Staph aureus pneumonia shows that a single organism can cause infections in multiple care settings, not just in the hospital. It can present in the community—often after a viral illness like influenza or in situations where virulent strains (including those producing PVL) cause severe, sometimes necrotizing pneumonia. It can also be acquired in the hospital, where MRSA is a well-known cause of nosocomial and ventilator-associated pneumonia. Because it occurs in both environments, the correct view is that pneumonia due to Staph aureus can be both community- and hospital-acquired.