sentences:  DXV can infect fruit flies of the genus "Drosophila" and is commonly used to study innate immunity in the common model organism "Drosophila melanogaster".The virus is also often used to study RNA interference as a mechanism of viral immunity in "Drosophila".DXV was a contaminant that was isolated in infectious studies with a member of the "Rhabdoviridae" family, the Sigma virus.