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KMID : 0881720200350010006
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Journal of Food Hygiene and Safety
2020 Volume.35 No. 1 p.6 ~ p.12
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Prevalence of Toxin Genes and Profiles of Antibitoc Resistance in Vibrio vulnificus Isolates from Fish, Fish Tanks, and Patients
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Yoon Yeon-Hee
Park Sook
Kim Jin-Young
Lee Ye-Ju
Jeon Doo-Yung
Chio Gyeong-Cheol
Park Jong-Soo
Kim Jong-Beom
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Abstract
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Prevalence of toxin genes and profiles of antibiotic resistance in Vibrio vulnificus were investigated for prevention of Vibrio sepsis and selection of effective antibiotics. A total of 23 V. vulnificus strains were isolated from Vibrio sepsis patients, fish, and water samples collected from fish tanks in restaurants in Jeonnam province during 2015-2017 period. Prevalence of toxin genes including, RtxA, viuB and vvhA were assessed and susceptibilities to 15 different antibiotics were determined. As a result of the toxin gene profile, the RtxA toxin gene was detected in 19 (82.6%) out of 23 strains, and vvhA and viuB toxin genes were positive in all strains. These results showed that V.vulnificus tested in this study possessed at least one more toxin gene, and the toxin gene detection rate was higher than in previous reports. Therefore, there is always a risk of Vibrio sepsis through eating fish or having contact with aquarium water at seafood restaurants. Especially, it was deemed necessary to provide preventive education about Vibrio sepsis for workers in such restaurants. The results of antibiotic susceptibility tests presented 94.4% resistance to cepoxitin antibiotics but all strains showed susceptibility to 14 kinds of antibiotics including chloramphenicol and tetracycline. The currents antibiotic therapy using chloramphenicol and teteracycline against Vibrio sepsis was judged to be useful.
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KEYWORD
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Toxin gene, Antibiotic resistance, Vibrio vulnificus, Fish, Aquarium water
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