Respiratory Enteric Orphan virus (reovirus) is widely prevalent in the human population but not associated with any known human disease. Reovirus has been isolated from the respiratory and gastrointestinal tracts and is described as an "orphan" virus because the infection is asymptomatic. Recombinant reoviruses concentration qvirus.creative-biogene.com/services/oncolytic-reovirus-service.html