progressive vaccinia

progressive vaccinia definition - medical

progressive vaccinia

noun
A severe or even fatal form of vaccinia occurring as a complication of smallpox vaccination chiefly in persons with an immunologic deficiency or dyscrasia, characterized by progressive enlargement of the initial and secondary lesions.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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