The fish line CHSE/F was derived from Common bluegill (Lepomis macrochirus) embryo. It is susceptible to various fish viruses including infectious hematopoietic necrosis virus (IHNV); viral haemorrhagic septicaemia virus (VHSV); spring viraemia of carp virus (SVCV); and infectious pancreatic necrosis virus (IPNV).