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Viral Hemorrhagic Septicemia

Other Names: Egtved Disease, Infectious Nephrotic Swelling and Liver Degeneration, Abdominal Ascites of Trout, Infectious Anemia of Trout, Pernicious Anemia of Trout
Viral hemorrhagic septicemia (VHS) is a serious systemic disease of fish.

Disease Agents

  • Novirhabdovirus

Additional Disease Specific Resources


VHS Prevention Practices
Provides specific prevention recommendations for aquaculture operations to prevent the introduction and spread of VHS.
[Prevention Practices]

VHS Prevention Practices Checklist
Assessment checklist for your aquaculture operation.
[Prevention Practices Checklist]

VHS Response Package
This "response package" was developed to aid fish producers in preventing the introduction and spread of VHS to aquaculture facilities.
[Response Package]

Disease Categories

The links in this section will take you to a list of other diseases for that same category (e.g. diseases affecting that species, in a specific region, etc.).

Species Affected


Agent Type


To cite the factsheets found on this website, the following information can be used:
Spickler, Anna Rovid. "Title of Factsheet." "Date of Factsheet (Last Updated)."