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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/jfd.13768
|2 doi
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|a pubmed24n1179.xml
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|a (DE-627)NLM353785210
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|a (NLM)36872644
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Lim, Jongwon
|e verfasserin
|4 aut
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| 245 |
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|a Molecular mechanisms of the virulence and efficacy of a highly virulent Vibrio anguillarum strain and its formalin-inactivated vaccine in rainbow trout
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.04.2023
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|a Date Revised 07.04.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2023 John Wiley & Sons Ltd.
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|a In this study, we have isolated four strains of Vibrio anguillarum, revealing that they share the same serotype of O1, biochemical characteristics and virulence factor genes. However, there were differences in haemolytic activity among the bacterial strains; a strain with lower pathogenicity showed γ-haemolytic activity, whereas other virulent strains showed α-haemolytic activity on blood agar and higher empA gene expression in RTG-2 cell line. The most virulent strain was V. anguillarum RTBHR from diseased masu salmon (Oncorhynchus masou), which resulted in mortality of 100% and 93.3% when injected intraperitoneally at concentrations of 9 × 105 and 6.3 × 105 colony-forming units/fish in rainbow trout (Oncorhynchus mykiss) and Coho salmon (Oncorhynchus kisutch), respectively. A formalin-inactivated vaccine of V. anguillarum RTBHR induced a protective and specific immunity in rainbow trout as the vaccinated fish exhibited low cumulative mortality in a challenge test and a high specific antibody response in enzyme-linked immunosorbent assay at 8 weeks post-vaccination. The produced antibody was bound to bacterial proteins of 30-37 kDa in size. This adaptive immune response was detected as early as day 1, with quantitative polymerase chain reaction analysis revealing the upregulated expression of genes encoding for TCRα, T-bet, mIgM and sIgM in rainbow trout. This suggested that the vaccine induced T (probably a more dominant Th1 response) and B cell responses. In conclusion, the vaccine successfully protected fish from V. anguillarum infection by eliciting cellular and humoral immune responses
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|a Journal Article
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|a V. anguillarum
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| 650 |
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|a gene expression
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| 650 |
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|a pathogenicity
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| 650 |
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|a protection
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|a specific antibody
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|a vaccine
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| 650 |
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|a Vaccines, Inactivated
|2 NLM
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| 700 |
1 |
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|a Jang, Yoonyoung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Hyun-Ja
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hong, Suhee
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of fish diseases
|d 1998
|g 46(2023), 5 vom: 28. Mai, Seite 563-574
|w (DE-627)NLM098166034
|x 1365-2761
|7 nnns
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| 773 |
1 |
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|g volume:46
|g year:2023
|g number:5
|g day:28
|g month:05
|g pages:563-574
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/jfd.13768
|3 Volltext
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