The Pet Industry Joint Advisory Council (PIJAC) has issued a cautionary statement on the koi herpes virus:
PIJAC would like to remind U.S. common carp and koi producers and importers to be vigilant in protecting their livestock from the introduction or exposure to koi herpes virus. Koi herpes virus is a highly contagious viral pathogen affecting common carp (Cyprinus carpio), including koi carp. Koi herpes virus is known to occur in the U.S. both in wild and farm-raised susceptible species but may still cause high mortality and morbidity in naïve (unexposed) susceptible populations. Producers and importers should know the health and vaccination status of the animals they are raising or importing, respectively. To know the health status, producers and importers are encouraged to ask for health testing documentation specific for koi herpes virus from their animal suppliers.
For more information on Koi Herpes Virus see: http://edis.ifas.ufl.edu/vm113 and for questions or how to report positive findings please contact Kathleen Hartman, APHIS VS Aquaculture Program Leader at VS.SPRS.Feedback@aphis.usda.gov.
Source: PIJAC Warns about Koi Herpes