What is it about?
Salmonella spp. are known to cause food- and waterborne diseases in humans, with up to 1.2 million patients per year infected with non-typhoidal Salmonella. Antimicrobial resistant Salmonella have been detected in human and livestock feces, and in the aquatic environment, these can contaminate water resources causing a risk of infection in humans. Therefore, we investigated antimicrobial resistant Salmonella distribution in the Yae River at sites upstream, midstream, and downstream of Miyazaki City, Japan.
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Why is it important?
we evaluated the genetic relationship among antimicrobial resistant Salmonella. From these sites, we identified 116 Salmonella isolates. Isolates resistant to at least one antimicrobial agent were found to be 23% in upstream, 3% in midstream, and 32% in downstream sites. Furthermore, 11 isolates from the downstream site were resistant to chrolamphenicol, nalidixic acid, streptomycin, sulfamethoxazole, and tetracycline, with intermediate resistance to ciprofloxacin. These multidrug-resistant Salmonella isolates were obtained from identical sources, showing that they have a common genetic pattern.
Perspectives
In a developed country such as Japan with a developed water treatment system, antibiotic-resistant bacteria such as Salmonella are still likely to be widely distributed, and as demonstrated, can be found in an urban river close proximity to human life.
Prof., Ph. D. Yoshihiro Suzuki
University of Miyazaki
Read the Original
This page is a summary of: Distribution of antimicrobial resistantSalmonellain an urban river that flows through the provincial city of Miyazaki, Japan, Water and Environment Journal, September 2016, Wiley,
DOI: 10.1111/wej.12194.
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