Recent Examples of vaccinia from the Web
The vaccine is made from a live virus called vaccinia, which is a poxvirus that is similar to smallpox but less harmful.
The vaccine is made with live vaccinia virus, a poxvirus similar to but less harmful than smallpox.
The vaccine used to eradicate smallpox--the world's oldest vaccine--is itself a living virus named vaccinia; it was first used in 1796 by Edward Jenner, an English doctor.
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medical Definition of vaccinia
vaccinialplay \-ē-əl\ adjective
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