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|a 10.1111/j.1365-2761.2010.01148.x
|2 doi
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|a eng
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|a Shoemaker, C A
|e verfasserin
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|a Protection against heterologous Streptococcus iniae isolates using a modified bacterin vaccine in Nile tilapia, Oreochromis niloticus (L.)
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| 264 |
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|c 2010
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|a Text
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|a Date Completed 12.10.2010
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Streptococcus iniae is a significant pathogen impacting aquaculture production worldwide. The objectives of this study were to determine whether a developed modified S. iniae (ARS-98-60) bacterin vaccine is efficacious in Nile tilapia, Oreochromis niloticus (L.), against challenge with heterologous isolates from diverse geographical locations and to evaluate protein and antigenic variability among the isolates tested. Two groups of tilapia (approximately 5 g) were intraperitoneally (IP) vaccinated with 100 microL of the vaccine or sham vaccinated with 100 microL of sterile tryptic soy broth and held for 28 days. Fish were challenged with each isolate by IP injection of 2-3 x 10(7) CFU per fish using calcein to mark fish prior to cohabitation for challenge. The results demonstrated significant protection against all challenge isolates, and relative percent survivals ranged from 79% to 100%. SDS-PAGE analysis of whole-cell lysate proteins from the S. iniae isolates demonstrated similar protein profiles between 10 and 31 kDa and variation in profiles between 35 and 100 kDa. Western blot analysis using antiserum from vaccinated fish (ARS-98-60) demonstrated shared immunogenic proteins among all isolates in the molecular mass range of 22-35 kDa and high molecular mass material >150 kDa. The results suggest that the developed S. iniae vaccine has broad ranging protection among isolates exhibiting different protein profiles
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| 650 |
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|a Journal Article
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Bacterial Vaccines
|2 NLM
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| 700 |
1 |
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|a Lafrentz, B R
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|4 aut
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|a Klesius, P H
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|a Evans, J J
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|i Enthalten in
|t Journal of fish diseases
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|g 33(2010), 7 vom: 01. Juli, Seite 537-44
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|x 1365-2761
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|g month:07
|g pages:537-44
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|u http://dx.doi.org/10.1111/j.1365-2761.2010.01148.x
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