 Currently, there is no scientific data obtained using modern detection methods that would identify SeV as an infectious - disease causing agent for humans or domestic animals.Modern methods for the identification of pathogenic microorganisms have never detected SeV in pigs or other domestic animals, despite the isolation of other paramyxoviruses.Consequently, it is recognized that Sendai virus disease causing infection is host restrictive for rodents and the virus does not cause disease in humans or domestic animals, which are natural hosts for their own parainfluenza viruses.