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Updated: Sep 16, 2025

Environmental Screening of Aeromonas hydrophila, Mycobacterium spp., and Pseudocapillaria tomentosa in Zebrafish Systems
Published on: December 8, 2017
Genetic relationship of VEB-3 -producing Aeromonas hydrophila isolates between fish and the river in an aquatic
Tomoya Morimoto1, Michiyo Sugiyama1, Shiori Ikushima1,2
1The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan.
Abstract:
The spread of antimicrobial-resistant bacteria in natural environments is a global concern. In the present study, we investigated the distribution of cefotaxime-resistant Aeromonas hydrophila in the gills and intestines of freshwater fish. Bacteria carrying the ampH, blaVEB-3, and cphA1 genes were more frequently isolated from the gills, and most were assigned to ST1068. A genetically related strain was identified not only in fish but also in the river water. These results suggest that fish may be a valuable tool for monitoring environmental contamination caused by antimicrobial-resistant bacteria.

