Novirhabdovirus
Encyclopedia
Novirhabdovirus is one of the genera of Rhabdoviridae
, along with Vesiculovirus, known to infect aquatic hosts. They can be transmitted from fish to fish, by waterborne virus, as well as through contaminated eggs. Replication and thermal inactivation temperatures are generally lower than for other rhabdoviruses, given the cold-blooded nature of their hosts. Hosts include a large and growing range of marine and freshwater fish.
A common characteristic among novirhabdoviruses is the NV gene, an approximately 500 nucleotide long gene located between the glycoprotein (G) and polymerase (L) genes. The expected protein encoded by the NV gene is not found in the virions, leading to its being named a "nonvirion" (NV) protein. This is the origin of the genus name Novirhabdovirus.
The four recognized species of the genus are Hirame rhabdovirus, currently isolated to Japan, Infectious hematopoietic necrosis virus
(IHNV), enozootic to North America but now present in Europe and Asia as well, Viral hemorrhagic septicemia virus
(VHSV), enzootic to Europe but now present in North America and Asia as well, and Snakehead rhabdovirus
(SHRV). Two tentative species of the genus, identified the Seventh Report of the ICTV
, are Eel virus B12 (EEV-B12), and Eel virus C26 (EEV-C26).
Rhabdoviridae
Rhabdoviruses are viruses belonging to the family Rhabdoviridae, which is in the order Mononegavirales. The name is derived from the Greek rhabdos meaning rod referring to the shape of the viral particles. Rhabdoviruses infect a broad range of hosts throughout the animal and plant kingdoms...
, along with Vesiculovirus, known to infect aquatic hosts. They can be transmitted from fish to fish, by waterborne virus, as well as through contaminated eggs. Replication and thermal inactivation temperatures are generally lower than for other rhabdoviruses, given the cold-blooded nature of their hosts. Hosts include a large and growing range of marine and freshwater fish.
A common characteristic among novirhabdoviruses is the NV gene, an approximately 500 nucleotide long gene located between the glycoprotein (G) and polymerase (L) genes. The expected protein encoded by the NV gene is not found in the virions, leading to its being named a "nonvirion" (NV) protein. This is the origin of the genus name Novirhabdovirus.
The four recognized species of the genus are Hirame rhabdovirus, currently isolated to Japan, Infectious hematopoietic necrosis virus
Infectious hematopoietic necrosis virus
-Introduction:Infectious hematopoietic necrosis virus , is a negative-sense single-stranded, bullet-shaped RNA virus that is a member of the Rhabdoviridae family, and from the genus Novirhabdovirus. It causes the disease known as infectious hematopoietic necrosis in salmonid fish like trout and...
(IHNV), enozootic to North America but now present in Europe and Asia as well, Viral hemorrhagic septicemia virus
Viral hemorrhagic septicemia
Viral hemorrhagic septicemia is a deadly infectious fish disease caused by theViral hemorrhagic septicemia virus...
(VHSV), enzootic to Europe but now present in North America and Asia as well, and Snakehead rhabdovirus
Snakehead rhabdovirus
Snakehead rhabdovirus is a Novirhabdovirus that affects various species warm water wild and pond-cultured fish in Southeast Asia, including snakehead species for which it is named.-Isolation:...
(SHRV). Two tentative species of the genus, identified the Seventh Report of the ICTV
ICTV
ICTV can stand for*International Committee on Taxonomy of Viruses, a taxonomic organisation and the nomenclature code it produces*ICTV , a content distribution network for delivering the web-media experience through television...
, are Eel virus B12 (EEV-B12), and Eel virus C26 (EEV-C26).