Diagnosis and Medical Management


Definitively diagnosing Streptococcus pneumoniae infection generally relies on isolating the organism from blood or other normally sterile body sites. Tests are also available to detect capsular polysaccharide antigen in body fluids.

A commercially available urinary antigen test can detect the C-polysaccharide antigen of Streptococcus pneumoniae as a cause of community-acquired pneumonia. The test

  • Is rapid and simple to use
  • Has a reasonable specificity in adults
  • Can detect pneumococcal pneumonia after initiation of antibiotic therapy

Available data show that pneumococcal bacteria are resistant to one or more antibiotics in more than 30% of cases.

Medical Management

For more information on medical management of pneumonia, please see the guidelines below.

Community-Acquired Pneumonia (CAP)

Healthcare-Associated Pneumonia (HCAP)

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Page last reviewed: September 1, 2020