| yaba monkey tumour virus | The type species of yatapoxvirus, a tumour-producing DNA virus discovered in monkeys in yaba, nigeria. It has been found to produce histiocytomas in monkeys and humans. (12 Dec 1998) |
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| Yaba monkey virus | A poxvirus from the family Poxviridae, distinct from monkeypox virus, that causes Yaba tumours in monkeys. Synonym: Yaba monkey virus. (05 Mar 2000) |