Abstract
Summary
Three viruses of salmonid fish, the Oregon sockeye salmon virus (OSV), the Sacramento River chinook salmon virus (SRCV), and the infectious hematopoietic virus of sockeye salmon and rainbow trout (IHN), have been studied by means of the plaque neutralization technique, with both homologous and heterologous antisera. The OSV and IHN agents were indistinguishable by this method. The SRCV was closely related to the other 2 antigenically, but the results of the cross neutralization assays indicated a significant difference between this virus and the others.
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