Spring Viremia of Carp

Agricultural Disaster Preparedness and Recovery, Agricultural Disaster Preparedness and Recovery December 18, 2013 Print Friendly and PDF

What Is Spring Viremia of Carp and Why Should I Care?

Spring Viremia of Carp is a highly infectious viral disease of carp, koi and goldfish. The virus is shed in the feces, urine and gill secretions of infected fish into the water, where it infects other fish by entering through the gills. The virus may be introduced into other tanks and bodies of water by contaminated equipment and clothing. There have been several vectors implicated including birds, fish lice, and leeches. Mortality rates associated with Spring viremia of carp can reach 70 percent depending on the age of the fish, species infected and water temperature. As the name implies, outbreaks of Spring viremia of carp are most common in the spring and fall.

Due to the infectious nature of the virus, the disease is considered an OIE- notifiable disease. Introduction to farmed fish has the potential for economic loss and must be reported immediately. 

Where Is Spring Viremia of Carp Found?

Europe, the Middle East, and Asia. The United States is considered free from Spring Viremia of Carp.

Can Spring Viremia of Carp Affect People?

Spring viremia of carp is not a public health threat.

What Are Signs Of Spring Viremia of Carp?

  • Darkening of body color
  • Tilting to one side
  • Lying on bottom of tank/pond
  • Bulging eyes
  • Distended abdomen
  • Bloody discharge from vent
  • Edema
  • Hemorrhaging of gills and skin

Can Spring Viremia of Carp Be Treated?

There is no specific treatment for Spring viremia of carp. Any fish suspected of having this disease should be reported to the State Veterinarians or USDA Area Veterinarian in Charge immediately.

How Can Spring Viremia of Carp Be Prevented?

Maintaining water temperature above 68oF may prevent an outbreak of Spring Viremia of Carp. Treatment of water with UV light will help in neutralizing the virus as well as a thorough disinfection of all culture equipment. In addition, sound biosecurity practices must be established and maintained.

Where Can I Find Additional Information?

Spring Viremia of Carp -University of Florida

Spring Viremia of Carp -APHIS

Spring Viremia of Carp -Iowa State University

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.