A laboratory analysis of serum can determine the concentration of protective proteins directed against Streptococcus pneumoniae, a bacterium capable of causing severe infections like pneumonia, meningitis, and sepsis. This analysis typically quantifies the levels of antibodies specific to various serotypes of the bacteria, often after vaccination. For instance, a clinician might order this test to assess a patient’s immune response to a pneumococcal vaccine.
Evaluating immune response is crucial for vulnerable populations, such as infants, the elderly, and immunocompromised individuals. These measurements provide valuable insights into the effectiveness of vaccination programs and inform clinical decisions regarding further immunization or preventative strategies. Historically, understanding and measuring these immune responses have played a significant role in reducing the global burden of pneumococcal disease, particularly in children.
