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Assessment of animal diseases caused by bacteria resistant to antimicrobials: kept fish species

EFSA Panel on Animal Health and Welfare (AHAW) et al. EFSA J. .

Abstract

In this Opinion, the antimicrobial-resistant bacteria responsible for transmissible diseases that constitute a threat to the health of certain kept fish species have been assessed. Atlantic salmon (Salmo salar), carp (Cyprinus spp.), rainbow trout (Oncorhynchus mykiss), sea bream (Sparus aurata) and tilapia (Oreochromis spp.), selected as representative of the most important fish species and production systems that are commercially reared in fresh and saltwater farms, were the focus of this assessment. The assessment was performed following a methodology based on information collected by an extensive literature review and expert judgement. Details of the methodology used for this assessment are explained in a separate Opinion. The global state of play of antimicrobial resistance in Aeromonas hydrophila, Aeromonas salmonicida, Flavobacterium psychrophilum and Flavobacterium columnare is provided. Among these bacteria, none was identified as being among the most relevant antimicrobial-resistant bacteria in the assessed kept fish species in the EU due to the very limited scientific evidence available.

Keywords: Animal Health Law; antimicrobial resistance; extensive literature review; fish.

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Figures

Figure 1
Figure 1
Main producer countries for tilapia, rainbow trout, common carp, Atlantic salmon and sea bream

  1. Source: FAO Cultured Aquatic Species Fact Sheets (FAO, , , , –e).

Figure 2
Figure 2
The seven included publications arranged by year of publication
Figure 3
Figure 3
Geographical distribution of the seven included references
Figure 4
Figure 4
Aeromonas hydrophila resistance data for each included study sorted by country

  1. Each circle represents one study, and the size of each circle reflects how many isolates were included in the study. The colour of a circle illustrates resistance (red circle). The dashed lines indicate, for each antimicrobial, the weighted arithmetic mean of %R. The exact percentages that these lines represent are listed in Appendix C. Numbers written to the left of antimicrobial names reflect the number of studies for a certain drug/country combination.

Figure 5
Figure 5
Level of certainty for the inclusion of the selected antimicrobial‐resistant pathogens of certain kept fish species among the most relevant in the EU
See this image and copyright information in PMC

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