simian virus 40 -'fȯrt-ē n a double-stranded DNA virus of the genus Polyomavirus (species Simian virus 40) that infects monkeys and has been shown experimentally to cause tumors in laboratory animals (as newborn hamsters) called also SV40
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(SV40) a species of the genus Polyomavirus that was isolated from Rhesus monkey kidney tissue and produces transformation in human and newborn hamster kidney cell cultures and has caused progressive multifocal leukoencephalopathy in humans.Medical dictionary. 2011.