 Detection, therefore, makes use of SeV-specific antigens in several serological methods, including ELISA, immunofluorescence, and hemagglutination assays, with particular emphasis on use of the ELISA for its high sensitivity (unlike the hemagglutination assay) and its fairly early detection (unlike the immunofluorescence assay).In a natural setting, the respiratory infection of Sendai virus in mice is acute.From the extrapolation of the infection of laboratory mice, the presence of the virus may first be detected in the lungs 48 to 72 hours following exposure.