title: Persistence of herpesvirus of eel Herpesvirus anguillae in farmed European eel Anguilla anguilla.
abstract: Herpesvirus of eel Herpesvirus anguillae (HVA) was isolated repeatedly from farmed eel of an outwardly healthy stock, but virus isolation was much greater in an experimental group of fish that were injected with dexamethasone. The results suggest that HVA can establish a latent infection in eel. Previous exposure of these eels to HVA virus was shown by detection of HVA-specific antibodies. These eels did not show clinical signs after a secondary infection with HVA. Tracing of seropositive eel stocks, which had previous contact with HVA, and of HVA carrier fish can be useful to control disease outbreaks due to HVA infection.
authors.affiliation: Fish Diseases Laboratory, ID-Lelystad Institute for Animal Science and Health, The Netherlands. a.p.k.m.i.vannieuwstadt@id.wag-ur.nl
authors.forename: A P
authors.initials: AP
authors.lastname: van Nieuwstadt
authors.forename: S G
authors.initials: SG
authors.lastname: Dijkstra
authors.forename: O L
authors.initials: OL
authors.lastname: Haenen
mesh_terms: D000811:Anguilla; D000818:Animals; D000914:Antibodies, Viral / Q000097:blood*; D017756:Aquaculture; D002353:Carrier State / Q000276:immunology / Q000662:veterinary* / Q000821:virology; D003907:Dexamethasone / Q000494:pharmacology; D005393:Fish Diseases / Q000276:immunology / Q000821:virology*; D005938:Glucocorticoids / Q000494:pharmacology; D006564:Herpesviridae / Q000187:drug effects / Q000276:immunology / Q000302:isolation & purification*; D006566:Herpesviridae Infections / Q000276:immunology / Q000662:veterinary* / Q000821:virology; D009426:Netherlands; D017201:Virus Shedding / Q000187:drug effects
chemical_list: D000914:Antibodies, Viral; D005938:Glucocorticoids; D003907:Dexamethasone