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pneumococcal vaccine in Medicine

pneumococcal vaccine

(nōō′mə-kŏkəl)
n.
  1. A vaccine containing purified capsular polysaccharide antigen from the most common infectious types of Streptococcus pneumoniae, used to immunize against pneumonococcal disease.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.