[ ə-tĕn′yōō-ā′tĭd ]
A strain of a virus whose pathogenicity has been reduced so that it will initiate the immune response without producing the specific disease.
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Words nearby attenuated virus
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.