Orthopoxvirus

Orthopoxvirus definition - medical

Or·tho·pox·vi·rus (ôrˌthō-pŏksˈvīˌrəs)

noun
A genus of poxviruses that includes the viruses that cause smallpox and cowpox.

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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