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orthopoxvirus Syllabification: or·tho·pox·vi·rus
Pronunciation: /ˈôrTHōˌpäksˌvīrəs/

Definition of orthopoxvirus in English:


Any of a set of viruses pathological in humans and animals that includes the cowpox, smallpox, and monkeypox viruses.
  • GenusOrthopoxvirus, family Poxviridae
Example sentences
  • The disease is caused by Monkeypox virus, which belongs to the orthopoxvirus group of viruses.
  • Guidelines for vaccination of laboratory personnel who directly handle orthopoxviruses have not changed.
  • Smallpox is an orthopoxvirus, was certified as eradicated in 1980, and no longer occurs naturally.
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