Detection of Salmonid IgM Specific to the Piscine Orthoreovirus Outer Capsid Spike Protein Sigma 1 Using Lipid-Modified Antigens in a Bead-Based Antibody Detection Assay oleh Lena Hammerlund Teige, Subramani Kumar, Subramani Kumar, Grethe M. Johansen, Øystein Wessel, Niccolò Vendramin, Morten Lund, Morten Lund, Espen Rimstad, Preben Boysen, Maria K. Dahle