Spumavirus

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Spumavirus

Genus of non-oncogenic retroviruses which establish persistent infections in many animal species but are considered non-pathogenic. Its organisms have been isolated from primates (including humans), cattle, cats, hamsters, and sea lions. Spumaviruses have a foamy or lace-like appearance and are often accompanied by syncytium formation. Chimpanzee foamy virus is the type species.