Nodaviridae is a family of nonenveloped positive-strand RNA viruses.

Diseases associated with this family include: viral encephalopathy and retinopathy in fish.

[citation needed] The virus is not enveloped and has an icosahedral capsid (triangulation number = 3) ranging from 29 to 35 nm in diameter.

[2] The genome is linear, positive sense, bipartite (composed of two segments – RNA1 and RNA2) single stranded RNA consisting of 4500 nucleotides with a 5’ terminal methylated cap and a non-polyadenylated 3’ terminal.

[2] Flock house virus (FHV) is the best studied of the nodaviruses.