Evidence map›Paper›PMID 41663522›Full record

ArticleScientific reports2026

Epidemiology of Kudoa septempunctata food poisoning in Japan from 2013 to 2023.

Yoshiro Hadano, Hirotake Mori, Yuichiro Tanaka, Aongart Mahittikorn, Satoshi Ohno

Abstract read
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Yoshiro HadanoDivision of Infection Control and Prevention, Shimane University Hospital, 89-1 Enyacho, Izumo, Shimane, 693-8501, Japan. yhadano@med.shimane-u.ac.jp.
Hirotake MoriDepartment of General Medicine, Faculty of Medicine, Juntendo University, Tokyo, Japan.
Yuichiro TanakaFaculty of Medicine, Shimane University, Izumo, Shimane, Japan.
Aongart MahittikornDepartment of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Satoshi OhnoDivision of Infection Control and Prevention, Shimane University Hospital, 89-1 Enyacho, Izumo, Shimane, 693-8501, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Kudoa septempunctata, a parasite found in olive flounder, poses a growing food safety risk in East Asia, particularly in Japan and South Korea. K. septempunctata poisoning caused by raw fish consumption causes brief gastrointestinal symptoms. However, long-term, national-scale aggregated epidemiological data for K. septempunctata food poisoning are limited. In this retrospective study, we examined the recent epidemiological trends and characteristics of K. septempunctata food poisoning cases reported in Japan between January 2013 and December 2023. Ministry of Health "Foodborne Illness Statistical Data" were assessed for case counts, outbreaks, and implicated foods. Reported cases totaled 2009, reaching a peak in 2014 (429 cases) then declining to < 100 cases during the COVID-19 pandemic. October had the highest number of monthly reports. Flounder, particularly sashimi and sushi, were implicated in 99% of cases. The highest case counts occurred in Yamaguchi, Osaka, and Fukuoka prefectures (160, 155, and 154, respectively). Tottori, Shimane, Yamaguchi and Oita prefectures had the highest incidence rates (14.3, 10.9, 10.7, and 10.7 per 1,000,000 population, respectively). Prefectures along the Sea of Japan typically reported higher incidence rates. This study highlights the importance of continued surveillance and reporting of K. septempunctata poisoning, and the need to consider Kudoa infections in the differential diagnosis of food poisoning cases involving raw fish consumption.

Indexed as

Foodborne DiseasesMyxozoaAnimalsFlounderHumansIncidenceJapanRetrospective StudiesEpidemiologyFood poisoningJapanKudoa septempunctata

Identifiers

PMID41663522
PMCPMC12957298

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.