<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Changes occurring in freshwater ecosystems seem to be fundamental in the development of all microorganisms, including those pathogenic to fish. This has been especially evident in recent years during which dynamic variations in bacterial fish pathology have been observed. Gram-negative bacteria commonly known to be pathogenic to fish, like <italic>Aeromonas</italic> spp., <italic>Flavobacterium</italic> spp., <italic>Pseudomonas</italic> spp., and <italic>Shewanella putrefaciens</italic> are replaced by other species, which until now have not been known to be virulent or even conditionally pathogenic to fish. Nowadays, among these other species <italic>Acinetobacter</italic> spp., <italic>Plesiomonas shigelloides</italic>, <italic>Sphingomonas paucimobilis</italic>, and <italic>Stenotrophomonas maltophilia</italic> are the most frequently isolated from fish exhibiting clinical signs of disease. Two Gram-positive bacteria have become pathogens of particular importance in fish pathology in Poland: <italic>Lactococcus garviae</italic> and <italic>Streptococcus iniae</italic>. In addition, infections caused by the Gram-positive bacterium <italic>Kocuria rhizophila</italic> have appeared in recent years. This bacterium has not been known until now to be pathogenic to fish. Therefore, this infection could be called an emergent disease.</p></abstract>

Changes occurring in freshwater ecosystems seem to be fundamental in the development of all microorganisms, including those pathogenic to fish. This has been especially evident in recent years during which dynamic variations in bacterial fish pathology have been observed. Gram-negative bacteria commonly known to be pathogenic to fish, like Aeromonas spp., Flavobacterium spp., Pseudomonas spp., and Shewanella putrefaciens are replaced by other species, which until now have not been known to be virulent or even conditionally pathogenic to fish. Nowadays, among these other species Acinetobacter spp., Plesiomonas shigelloides, Sphingomonas paucimobilis, and Stenotrophomonas maltophilia are the most frequently isolated from fish exhibiting clinical signs of disease. Two Gram-positive bacteria have become pathogens of particular importance in fish pathology in Poland: Lactococcus garviae and Streptococcus iniae. In addition, infections caused by the Gram-positive bacterium Kocuria rhizophila have appeared in recent years. This bacterium has not been known until now to be pathogenic to fish. Therefore, this infection could be called an emergent disease.

Contemporary threats of bacterial infections in freshwater fish

Journal of Veterinary Research

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Contemporary threats of bacterial infections in freshwater fish"}

Changes occurring in freshwater ecosystems seem to be fundamental in the development of all microorganisms, including those pathogenic to fish. This has been...

Contemporary threats of bacterial infections in freshwater fish

Article Category: Review Article

Published Online: Oct 23, 2018

Page range: 261 - 267

Received: May 18, 2018

Accepted: Sep 19, 2018

DOI: https://doi.org/10.2478/jvetres-2018-0037

Keywords
freshwater fish, bacterial fish diseases, Poland

© 2018 A. Pękala-Safińska, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Contemporary threats of bacterial infections in freshwater fish

Article Category: Review Article

Published Online: Oct 23, 2018

Page range: 261 - 267

Received: May 18, 2018

Accepted: Sep 19, 2018

DOI: https://doi.org/10.2478/jvetres-2018-0037

Keywordsfreshwater fish, bacterial fish diseases, Poland

© 2018 A. Pękala-Safińska, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
freshwater fish, bacterial fish diseases, Poland