Parasites, Hosts and Diseases

  • 제61권1호
  • /
  • Pages.15-23
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  • 2023
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  • 2982-5164(pISSN)
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  • 1738-0006(eISSN)
대한기생충학·열대의학회 (The Korea Society for Parasitology and Tropical Medicine)
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Molecular detection and genotype analysis of Kudoa septempunctata from food poisoning outbreaks in Korea

  • Gyung-Hye Sung (Infectious Diseases Research Team, Busan Metropolitan City Institute of Health and Environment) ;
  • In-Ji Park (Infectious Diseases Research Team, Busan Metropolitan City Institute of Health and Environment) ;
  • Hee-Soo Koo (Infectious Diseases Research Team, Busan Metropolitan City Institute of Health and Environment) ;
  • Eun-Hee Park (Infectious Diseases Research Team, Busan Metropolitan City Institute of Health and Environment) ;
  • Mi-Ok Lee (Infectious Diseases Research Team, Busan Metropolitan City Institute of Health and Environment)
  • 투고 : 2022.03.25
  • 심사 : 2022.12.23
  • 발행 : 2023.02.28
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초록

Concerns about foodborne illnesses caused by Kudoa septempunctata are steadily growing, but reports of K. septempunctata in clinical and food specimens related to food poisoning in Korea are limited. This study aimed to genetically identify K. septempunctata in patients with acute diarrhea and in clinical and food samples related to food poisoning caused by sashimi consumption. Both real-time and nested polymerase chain reaction assays were performed to detect K. septempunctata 18S and 28S rDNA genes in the stools of 348 patients with acute diarrhea, 11 samples (6 stool and 5 rectal swab samples) from patients with food poisoning, and 2 raw Paralichthys olivaceus samples collected from a restaurant where a food poisoning incident occurred. K. septempunctata was identified in 5 clinical specimens (4 stools and 1 rectal swab) and 1 P. olivaceus sashimi sample. All detected K. septempunctata were of genotype ST3. This is the first study to identify K. septempunctata in both patients and food samples with epidemiological relevance in Korea, providing evidence that it is a pathogen that causes food poisoning. Also, this is the first study to confirm the presence of K. septempunctata genes in rectal swabs. Despite continuing suspected occurrences of Kudoa foodborne outbreaks, the rate of identification of K. septempunctata is very low. One reason for this is the limitation in obtaining stool and vomit samples for the diagnosis of Kudoa infection. We strongly suggest the inclusion of rectal swabs among the diagnostic specimens for Kudoa food poisoning.

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참고문헌

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