1. 
   Orthopoxvirus
   Orthopoxvirus is a genus of poxviruses that includes many species isolated from mammals, such as Camelpox virus, Cowpox virus, Ectromelia virus, Monkeypox virus, and Volepox virus, which causes mousepox. The most famous member of the genus is Variola virus, which causes smallpox. It was wiped out u...
   Found op http://en.wikipedia.org/wiki/Orthopoxvirus
   
   
2. 
   orthopoxvirus
   A genus of the family poxviridae, subfamily chordopoxvirninae, comprising many species infecting mammals. Viruses of this genus cause generalised infections and a rash in some hosts. The type species is vaccinia virus. ... (12 Dec 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?orthopoxvirus
   
   
3. 
   Orthopoxvirus
   (or´tho-poks-vi″rәs) a genus of viruses of the family Poxviridae, which cause generalized infections with a rash in mammals. It includes cowpox, monkeypox, and variola viruses.
   Found op http://www.encyclo.co.uk/local/21001
   
   
4. 
   orthopoxvirus
   (or´tho-poks-vi″rәs) any member of a genus of poxviruses, including the viruses that cause human smallpox and vaccinia.
   Found op http://www.encyclo.co.uk/local/21001
   
   
5. 
   Orthopoxvirus
   Type: Term Pronunciation: ōr′thō-poks′vī-rŭs Definitions: 1. The genus of the family Poxviridae, which comprises the viruses of alastrim, vaccinia, variola, cowpox, ectromelia, monkeypox, and rabbitpox.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=63471
   
   

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