Vaccination against pneumococcal disease (caused by those pneumococcal types included in the vaccine) for immunocompetent persons aged ≥50 yr as routine vaccination; immunocompetent persons aged ≥2 yr w/ chronic CV disease, chronic pulmonary disease or DM, w/ alcoholism, chronic liver disease or CSF leaks, w/ functional or anatomic asplenia, & those living in special environments or social settings; immunocompromised persons aged ≥2 yr, including those w/ HIV infection, leukemia, lymphoma, Hodgkin's disease, multiple myeloma, generalized malignancy, chronic renal failure or nephrotic syndrome, those receiving immunosuppressive chemotherapy (including corticosteroids), & those who have received organ or bone marrow transplant.