Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 501885
Title First evidence of infectious hematopoietic necrosis virus (IHNV) in the Netherlands
Author(s) Haenen, Olga; Schuetze, H.; Cieslak, M.; S., Oldenburg; Spierenburg, M.; Roozenburg-Hengst, R.E.M.; Voorbergen-Laarman, H.A.; Engelsma, M.Y.; Olesen, N.
Source Journal of Fish Diseases 39 (2016)8. - ISSN 0140-7775 - p. 971 - 979.
DOI http://dx.doi.org/10.1111/jfd.12434
Department(s) CVI Bacteriology and Epidemiology
CVI Diagnostics and Crisis
Publication type Refereed Article in a scientific journal
Publication year 2016
Abstract In spring 2008, infectious hematopoietic necrosis virus (IHNV) was detected for the first time in the Netherlands. The virus was isolated from rainbow trout, Oncorhynchus mykiss (Walbaum), from a put-and-take fishery with angling ponds. IHNV is the causative agent of a serious fish disease, infectious hematopoietic necrosis (IHN). From 2008 to 2011, we diagnosed eight IHNV infections in rainbow trout originating from six put-and-take fisheries (symptomatic and asymptomatic fish), and four IHNV infections from three rainbow trout farms (of which two were co-infected by infectious pancreatic necrosis virus, IPNV), at water temperatures between 5 and 15 °C. At least one farm delivered trout to four of these eight IHNV-positive farms. Mortalities related to IHNV were mostly <40%, but increased to nearly 100% in case of IHNV and IPNV co-infection. Subsequent phylogenetic analysis revealed that these 12 isolates clustered into two different monophyletic groups within the European IHNV genogroup E. One of these two groups indicates a virus-introduction event by a German trout import, whereas the second group indicates that IHNV was already (several years) in the Netherlands before its discovery in 2008
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