Demonstration of infectious salmon anaemia (ISA) viral antigens in cell cultures and tissue sections

K Falk1, B H Dannevig

  • 1Department of Virology, Central Veterinary Laboratory, Oslo, Norway.

Veterinary Research
|January 1, 1995
PubMed

Rabbit polyclonal antibodies and mouse monoclonal antibodies (MAb) directed against infectious salmon anaemia virus (ISAV) were produced using a virus prepared in a newly established cell line culture developed from Atlantic salmon head kidney (SHK-1) cells. These antibodies were used to establish an indirect fluorescent antibody test for the detection of viral antigens in cell cultures and tissue cryosections. Specific fluorescence was detected in ISAV-infected cell cultures using rabbit polyclonal and MAb. One selected MAb produced specific staining for ISAV in the tissue sections from all the examined organs of ISAV-infected Atlantic salmon 20 d post infection. Fluorescence was mainly found in the endothelial cells and in single cells scattered throughout the parenchyma of the organs.

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