Nodaviruses of fish
Part Of
Aquaculture Virology
Start Page
515
End Page
543
ISBN (of the container)
9780323911696
DOI (of the container)
10.1016/C2021-0-00085-7
ISBN
9780323911696
Date Issued
2024
Author(s)
Abstract
Fish nodaviruses are causative agents of viral nervous necrosis (VNN) disease, which is also known as viral encephalopathy and retinopathy. In the last three decades, VNN has caused mass mortality in many species of cultured marine fish worldwide. Fish nodavirus is a nonenveloped icosahedral virion with diameter of 25-30nm, containing two single-stranded, positive-sense genomic RNAs, and is classified in the genus Betanodavirus, family Nodaviridae. There are four genotypes of betanodavirus with different optimal growth temperatures and different host ranges. In this chapter, the characteristics of the betanodavirus, the phylogenic relationship, the interaction between virus and host fish, the transmission pathways, the progression of viral infection, viral replication cycle, viral protein-induced cytopathogenesis, and the diagnosis and control strategies are carefully reviewed and discussed.
Subjects
and virus and host interaction
aquaculture disease
betanodavirus
cytopathogenesis
Fish nodavirus
marine fish
phylogenic analysis
vaccine
viral encephalopathy and retinopathy
viral nervous necrosis
Publisher
Elsevier
Description
Second Edition
Type
book part