Francisella infections in farmed and wild aquatic organisms
Abstract Over the last 10 years or so, infections caused by bacteria belonging to a particular branch of the genus Francisella have become increasingly recognised in farmed fish and molluscs worldwide. While the increasing incidence of diagnoses may in part be due to the development and widespread a...
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ftdoajarticles:oai:doaj.org/article:f748111bd7504e09a1162d7915042e61 2023-05-15T15:27:43+02:00 Francisella infections in farmed and wild aquatic organisms Colquhoun Duncan J Duodu Samuel 2011-03-01T00:00:00Z https://doi.org/10.1186/1297-9716-42-47 https://doaj.org/article/f748111bd7504e09a1162d7915042e61 EN eng BMC http://www.veterinaryresearch.org/content/42/1/47 https://doaj.org/toc/0928-4249 https://doaj.org/toc/1297-9716 doi:10.1186/1297-9716-42-47 0928-4249 1297-9716 https://doaj.org/article/f748111bd7504e09a1162d7915042e61 Veterinary Research, Vol 42, Iss 1, p 47 (2011) Veterinary medicine SF600-1100 article 2011 ftdoajarticles https://doi.org/10.1186/1297-9716-42-47 2022-12-31T06:53:57Z Abstract Over the last 10 years or so, infections caused by bacteria belonging to a particular branch of the genus Francisella have become increasingly recognised in farmed fish and molluscs worldwide. While the increasing incidence of diagnoses may in part be due to the development and widespread availability of molecular detection techniques, the domestication of new organisms has undoubtedly instigated emergence of clinical disease in some species. Francisellosis in fish develops in a similar fashion independent of host species and is commonly characterised by the presence of multi-organ granuloma and high morbidity, with varying associated mortality levels. A number of fish species are affected including Atlantic cod, Gadus morhua tilapia, Oreochromis sp.; Atlantic salmon, Salmo salar hybrid striped bass, Morone chrysops × M. saxatilis and three-lined grunt, Parapristipoma trilinineatum . The disease is highly infectious and often prevalent in affected stocks. Most, if not all strains isolated from teleost fish belong to either F. noatunensis subsp. orientalis in warm water fish species or Francisella noatunensis subsp. noatunensis in coldwater fish species. The disease is quite readily diagnosed following histological examination and identification of the aetiological bacterium by culture on cysteine rich media or PCR. The available evidence may indicate a degree of host specificity for the various Francisella strains, although this area requires further study. No effective vaccine is currently available. Investigation of the virulence mechanisms and host response shows similarity to those known from Francisella tularensis infection in mammals. However, no evidence exists for zoonotic potential amongst the fish pathogenic Francisella . Article in Journal/Newspaper atlantic cod Atlantic salmon Gadus morhua Salmo salar Directory of Open Access Journals: DOAJ Articles Veterinary Research 42 1 47 |
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Veterinary medicine SF600-1100 |
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Veterinary medicine SF600-1100 Colquhoun Duncan J Duodu Samuel Francisella infections in farmed and wild aquatic organisms |
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Veterinary medicine SF600-1100 |
description |
Abstract Over the last 10 years or so, infections caused by bacteria belonging to a particular branch of the genus Francisella have become increasingly recognised in farmed fish and molluscs worldwide. While the increasing incidence of diagnoses may in part be due to the development and widespread availability of molecular detection techniques, the domestication of new organisms has undoubtedly instigated emergence of clinical disease in some species. Francisellosis in fish develops in a similar fashion independent of host species and is commonly characterised by the presence of multi-organ granuloma and high morbidity, with varying associated mortality levels. A number of fish species are affected including Atlantic cod, Gadus morhua tilapia, Oreochromis sp.; Atlantic salmon, Salmo salar hybrid striped bass, Morone chrysops × M. saxatilis and three-lined grunt, Parapristipoma trilinineatum . The disease is highly infectious and often prevalent in affected stocks. Most, if not all strains isolated from teleost fish belong to either F. noatunensis subsp. orientalis in warm water fish species or Francisella noatunensis subsp. noatunensis in coldwater fish species. The disease is quite readily diagnosed following histological examination and identification of the aetiological bacterium by culture on cysteine rich media or PCR. The available evidence may indicate a degree of host specificity for the various Francisella strains, although this area requires further study. No effective vaccine is currently available. Investigation of the virulence mechanisms and host response shows similarity to those known from Francisella tularensis infection in mammals. However, no evidence exists for zoonotic potential amongst the fish pathogenic Francisella . |
format |
Article in Journal/Newspaper |
author |
Colquhoun Duncan J Duodu Samuel |
author_facet |
Colquhoun Duncan J Duodu Samuel |
author_sort |
Colquhoun Duncan J |
title |
Francisella infections in farmed and wild aquatic organisms |
title_short |
Francisella infections in farmed and wild aquatic organisms |
title_full |
Francisella infections in farmed and wild aquatic organisms |
title_fullStr |
Francisella infections in farmed and wild aquatic organisms |
title_full_unstemmed |
Francisella infections in farmed and wild aquatic organisms |
title_sort |
francisella infections in farmed and wild aquatic organisms |
publisher |
BMC |
publishDate |
2011 |
url |
https://doi.org/10.1186/1297-9716-42-47 https://doaj.org/article/f748111bd7504e09a1162d7915042e61 |
genre |
atlantic cod Atlantic salmon Gadus morhua Salmo salar |
genre_facet |
atlantic cod Atlantic salmon Gadus morhua Salmo salar |
op_source |
Veterinary Research, Vol 42, Iss 1, p 47 (2011) |
op_relation |
http://www.veterinaryresearch.org/content/42/1/47 https://doaj.org/toc/0928-4249 https://doaj.org/toc/1297-9716 doi:10.1186/1297-9716-42-47 0928-4249 1297-9716 https://doaj.org/article/f748111bd7504e09a1162d7915042e61 |
op_doi |
https://doi.org/10.1186/1297-9716-42-47 |
container_title |
Veterinary Research |
container_volume |
42 |
container_issue |
1 |
container_start_page |
47 |
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1766358129959763968 |