PMID- 22233687 OWN - NLM STAT- MEDLINE DCOM- 20120508 LR - 20120213 IS - 1095-9947 (Electronic) IS - 1050-4648 (Linking) VI - 32 IP - 4 DP - 2012 Apr TI - Diagnostic capacity for viral haemorrhagic septicaemia virus (VHSV) infection in rainbow trout (Oncorhynchus mykiss) is greatly increased by combining viral isolation with specific antibody detection. PG - 593-7 LID - 10.1016/j.fsi.2011.12.007 [doi] AB - Detection of disease specific antibodies in farmed rainbow trout (Oncorhynchus mykiss) has been proposed as an alternative or supplement to the currently approved procedures for diagnosis and surveillance in this species. In samples from natural outbreaks of the disease viral haemorrhagic septicaemia (VHS) at two freshwater farms in southern Denmark serologic testing was used to broaden the diagnostic window from outbreak to diagnosis in the laboratory as compared to traditional procedures of isolation and identification of the virus. The serologic assay clearly increased the chance of detecting present or previous infections where the pathogen could not be isolated by standard methods (indicating older infections where the virus had been cleared). Our data allowed us to monitor the levels of neutralising antibodies in relation to the presence of the virus in fish experiencing two different types of outbreaks at two different farms. By sequence analysis of the viral glycoprotein from selected isolates we found no evidence for escape mutants having developed in the fish showing high titres of neutralising antibodies. CI - Copyright (c) 2011 Elsevier Ltd. All rights reserved. FAU - Schyth, B D AU - Schyth BD AD - National Veterinary Institute, Technical University of Denmark, Hangovej 2, 8200 Arhus N., Denmark. bdsc@vet.dtu.dk FAU - Ariel, E AU - Ariel E FAU - Korsholm, H AU - Korsholm H FAU - Olesen, N J AU - Olesen NJ LA - eng PT - Journal Article DEP - 20111222 PL - England TA - Fish Shellfish Immunol JT - Fish & shellfish immunology JID - 9505220 RN - 0 (Antibodies, Neutralizing) RN - 0 (Antibodies, Viral) SB - IM MH - Animals MH - Antibodies, Neutralizing MH - Antibodies, Viral/*blood MH - Antibody Specificity MH - Hemorrhagic Septicemia, Viral/blood/*diagnosis/virology MH - Novirhabdovirus/*isolation & purification MH - *Oncorhynchus mykiss MH - Reproducibility of Results MH - Serologic Tests EDAT- 2012/01/12 06:00 MHDA- 2012/05/09 06:00 CRDT- 2012/01/12 06:00 PHST- 2011/09/30 00:00 [received] PHST- 2011/11/28 00:00 [revised] PHST- 2011/12/13 00:00 [accepted] PHST- 2012/01/12 06:00 [entrez] PHST- 2012/01/12 06:00 [pubmed] PHST- 2012/05/09 06:00 [medline] AID - S1050-4648(11)00460-8 [pii] AID - 10.1016/j.fsi.2011.12.007 [doi] PST - ppublish SO - Fish Shellfish Immunol. 2012 Apr;32(4):593-7. doi: 10.1016/j.fsi.2011.12.007. Epub 2011 Dec 22.