• Title/Summary/Keyword: raw fish eating

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Morphological Classification and Infection Rate of Anisakid Larvae in Marine Fishes (한국산 해산어류의 Anisakid유충 감염률 및 형태학적 분류)

  • Kim, Ki-Hong;Joo, Kyoung-Hwan;Lee, Joon-Sang;Rim, Han-Jong
    • Journal of agricultural medicine and community health
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    • v.13 no.1
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    • pp.32-40
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    • 1988
  • Anisakiasis occur after the ingestion of raw marine fish and squid containg anisakid larvae. In recent years about 40 cases of anisakiasis have been recorded in Korea. Considering, however, the Korean style of eating raw fish, many more cases would exist and prevention is necessary. We describe the infection rate of anisakid larvae in 13 species of marine fish and squid which were caught in the Korean sea. And each extracted larva is classified according to morphological characters. The results are following ; Scomber japonicus, Pseudosciaena manchurica, Trichiurus haumela showed high infection rate of anisakid larvae. Although Sepia esculenta showed low infection rate, most of anisakid larvae found in Sepia edulis are embedded in muscles. So relative high frequent rate of anisakiasis may developed by Sepia esculenta. Five type (Anisakis Type I, Terranova Type B, Raphidascaris sp., Contracaecum Type A, Contracaecum Type D) of anisakid larvae are classified according to their morphological characters.

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Survival of Anisakis species larvae of chub mackerel (Scomber japonicus) in different kinds of condiments

  • Nam, U-Hwa;Lee, Seo-Young;Lee, Ji-Hyee;Kim, Jeong-Ho
    • Journal of fish pathology
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    • v.34 no.2
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    • pp.249-253
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    • 2021
  • Anisakiasis is a well-known zoonosis caused by ingestion of raw or thermally undercooked seafood product contaminated with live Anisakis nematode third stage larvae (L3). Several traditional processing techniques have been used to kill or remove the Anisakis larvae worldwide, but thermal processing or deep freezing are the most effective treatments to kill the Anisakis larvae. In this study, we investigated the survival of Anisakis larvae in several condiments (soy bean sauce, wasabi, vinegar, red pepper paste) commonly consumed when eating raw fish in Korea. We also examined several different media (NaCl solution, absolute alcohol, soju) to investigate their larvicidal effect. When directly exposed to various condiments, the most effective larvicidal effect was observed in the mixture of wasabi and soy bean sauce. When exposed to different NaCl solutions, the larvicidal ability became more effective as the concentration increased, but did not show 100% killing effect. In soju, the L3 were killed under less than 4 hr. We observed the larvicidal effects of several condiments in this study, but these results are thought to be carefully interpreted for actual use because all the condiments in this study showed the effect in hours and in general, the L3 are exposed to these condiments only for seconds before ingested in real situation.

Clinical Review of Acute Gastric Anisakiasis (Anisakiasis에 대한 임상적 고찰)

  • Kim, Pill-Young;Chung, Moon-Kwan;Lee, Heon-Ju;Kim, Chong-Suhl
    • Journal of Yeungnam Medical Science
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    • v.4 no.1
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    • pp.43-47
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    • 1987
  • 7 cases of Acute Gastric Anisakiasis have been reviewed at the Department of Internal Medicine. Yeungnam University Hospital from March, 1983 to December 1986. 1. Of 7 cases, the ratio of male and female was 3:4 and the age 30s occupied most (5 cases) the 50s' followed (2 cases). 2. Chief complains were in order of epigastric pain (6 cases), vomiting (3 cases), Nause (2 cases), Ulticaria (1 case) & epigastric fulling sensation (1 case). 3. In all 7 cases, the causative fish is Astroconcer myriaster. 4. The onset of symptoms was observed within 5 to 7 hours after eating the causative raw fish. 5. Gastrofiberscopic exam was undergo within 18 hours since onset of symptoms. 6. The gastrofiberscopic findings were gastric mucosal edema and redness in all 7 cases. One case also had mucosal erosion. The involved sites of the stomach were in frequency of order, the body (5 cases), the antrum (2 cases). 7. The symptoms of the patients relieved spontaneously without medical treatment after the extraction of the larva with biopsy forcep during gastrofiberscopy. 8. In Korea, many people take raw fish and there may be many patients of Anisakiasis so if much concern and careful observation are paid to whom, with severe cramping epigastric pain after taking of raw marine fish in about 10 hours, we could find out and confirm more patients suffering from Anisakiasis by immediate endoscopic gastrofiberscopy.

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Korean Families Eating-out Behavior in Relation to Family Life Cycle (가족생활주기에 따른 가족외식행동의 차이)

  • 유정림;박동연
    • Korean Journal of Community Nutrition
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    • v.7 no.2
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    • pp.188-198
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    • 2002
  • This study was conducted to compare families eating-out behavior in relation to family life cycle in order to provide basic information on nutritional education about eating-out. The data were collected by the survey method from 440 families who lived in apartment complexes in Kyong-ju and Seoul. The structured questionnaire included items about the frequency of eating out, the choice of eating-out menus, the decision maker of the eating-out process, the attitudes toward eating out and the general characteristics of the families. The major results are as follow: 1) In the cafe of telephone delivery service, and eat-in restaurants, the subjects showed statistical significance (p < 0.01). With respect to telephone delivery service, families in Step II used it most frequently, but families in Step I rarely used it. With respect to eat-in restaurants, families in Step II used them most frequently but families in Step IV rarely used them. 2) In all the family life cycle steps, the most favorable menu was fried chicken for take-out type, Chajang noodles, fried chicken and pizza fur telephone delivery, pizza for internet delivery, raw fish and beef for eat-in restaurant, Docbokki, laver rolled rice and ramyun for convenience flood stores. 3) The wife was most influential in making decisions about the take-out type (p < 0.001). In the case of telephone deliveries (p < 0.001), the wife was the most influential in the families of Steps I and II, but the children were the most influential in the families of Steps III and IV. In the case of eat-in restaurants (p < 0.001), the husband had the most effect on the decision-making process. In the case of convenience flood stores (p < 0.001), the children were the most influential in the families in Steps III and IV. In most family life cycle steps, each of them chose their own meal. 4) from a factor analysis perspective, attitudes toward eating out have been grouped according to two factors, namely 'Advantage' and 'Nutrition'. No factor showed a significant difference among the family life cycle steps.

Prevalence of Clonorchiasis and Related Factors for Inhabitants Near the Sumjin River (섬진강 유역 주민의 간흡충 감염실태 및 관련요인)

  • Kim, Souk-Young;Kim, Chun-Mi;Choi, Hyun-Kyoun;Kim, Young-Lim;Park, Young-Ae;Heo, Suk;Kim, Ae-Huei;Rho, Ea-Suk;Wang, Ok-Ryun;Lee, Young-Hee
    • Journal of Korean Academy of Rural Health Nursing
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    • v.4 no.2
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    • pp.79-86
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    • 2009
  • Purpose: This study was conducted to investigate the prevalence of Clonorchiasis and factors related to it among inhabitants of the area near the Sumjin River. Method: The data were collected from December 16, 2008 to January 10, 2009. Participants were 511 people who responded to a questionnaire. The formalinesther sedimentation technique was used to detect Clonorchiasis. The data were analyzed using descriptive statistics, $x^2$-test with the SPSS WIN 14.0 program. Results: The prevalence of Clonorchiasis by stool examination was 21.3%. There were statistically significant differences in prevalence of Clonorchiasis by gender ($x^2$=5.71, p=0.017), habit of eating raw fish ($x^2$=13.26, p<0.001), and alcohol consumption ($x^2$=10.54, p=0.032). The mean score for knowledge on Clonorchiasis was 10.68 (range 0-17) and there was no significant difference between the Clonorchiasis positive group and Clonorchiasis negative group. There were statistically significant differences in intention to change their habits of eating raw fish between Clonorchiasis positive group and Clonorchiasis negative group ($x^2$=26.10, p<0.001). Clonorchiasis positive group's intention was lower than the others. Conclusion: These results suggest that the prevalence of Clonorchiasis still high among the inhabitants in near the Sumjim River. Therefore, an effective management program for Clonorchiasis should be developed and administered.

A Case of Diphyllobothrium latum Infection in Childhood (소아에서의 광절열두조충 감염 1례)

  • Lee, Jin Soo;Kim, Baek Nam;Sohn, Young Mo;Lee, Jong Won;Im, Kyung-Il
    • Pediatric Infection and Vaccine
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    • v.8 no.1
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    • pp.129-133
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    • 2001
  • We experienced one rare case of Diphyllobothrium latum infection in childhood. It was proved by collection of worm after praziquantel treatment. Human diphyllobothriasis is chiefly caused through eating raw or unproperly cooked fish such as trout or salmon. This case was a 5-year old girl residing in Seoul, from whom a kind of pseudophyllidean tapeworm was detected in the feces. She would often eat sushi(raw fish) and had abdominal pain, but not revealed any sign of anemia. Obtained chain of worm segments that sized $0.25{\times}1.25cm$ was compatible with D. latum. Including the present 31 cases, total number of human D. latum infections proven by worms in Korea becomes 32 cases, and total number of child D. latum infections proven by worms in Korea becomes 4 cases.

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Anisakis simplex Larvae: Infection Status in Marine Fish and Cephalopods Purchased from the Cooperative Fish Market in Busan, Korea

  • Choi, Seon-Hee;Kim, Jung;Jo, Jin-Ok;Cho, Min-Kyung;Yu, Hak-Sun;Cha, Hee-Jae;Ock, Mee-Sun
    • Parasites, Hosts and Diseases
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    • v.49 no.1
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    • pp.39-44
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    • 2011
  • The infection status of marine fish and cephalopods with Anisakis simplex third stage larva (L3) was studied over a period of 1 year. A total of 2,537 specimens, which consisted of 40 species of fish and 3 species of cephalopods, were purchased from the Cooperative Fish Market in Busan, Korea, from August 2006 to July 2007. They were examined for A. simplex L3 from the whole body cavity, viscera, and muscles. A. simplex L3 were confirmed by light microscopy. The overall infection rate reached 34.3%, and average 17.1 larvae were parasitized per infected fish. Fish that recorded the highest infection rate was Lophiomus setigerus (100%), followed by Liparis tessellates (90%), Pleurogrammus azonus (90%), and Scomber japonicus (88.7%). The intensity of infection was the highest in Gadus macrocephalus (117.7 larvae per fish), followed by S. japonicus (103.9 larvae) and L. setigerus (54.2 larvae). Although abundance of A. simplex L3 was not seasonal in most of the fish species, 10 of the 16 selected species showed the highest abundance in February and April. A positive correlation between the intensity of L3 infection and the fish length was obvious in S. japonicus and G. macrocephalus. It was likely that A. simplex L3 are more frequently infected during the spring season in some species of fish. Our study revealed that eating raw or undercooked fish or cephalopods could still be a source of human infection with A. simplex L3 in Korea.

A Human Case of Clinostomum complanatum Infection in Korea

  • Park, Chan-Woong;Kim, Jong-Soon;Joo, Hyun-Soo;Kim, Jin
    • Parasites, Hosts and Diseases
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    • v.47 no.4
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    • pp.401-404
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    • 2009
  • A 33-year-old Korean man visited a medical clinic with complaints of throat discomfort and pain for one week. The symptoms occurred one day after eating raw brackish water fish, perch. Endoscopy revealed a fluke, about 5 mm in length, attaching to and peristaltically moving on the surface of the mucosa at the arytenoid region of the larynx. Microscopically, the testes were triangular, tandem, and separated by the uterus. The ovary and cirrus pouch were placed apart from median line between testes. Numerous blood cells were observed in the ceca. The worm was identified to be Clinostomum complanatum. This is the second human case of clinostomiasis in Korea.

Infection status with trematode metacercariae in pond smelts, Hypomesus olidus

  • Nam, Hae-Seon;Sohn, Woon-Mok
    • Parasites, Hosts and Diseases
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    • v.38 no.1
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    • pp.37-39
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    • 2000
  • Many Koreans usually eat raw pond smelts, Hypomesus olidus, in the winter. This study was performed to evaluate the infection status with trematode metacercariae in pond smelts from January 1998 through February 1999. Among 1,305 fish collected, 459 were purchased from wholesale dealers in Chinchon-gun, Chungchongbuk-do, and the rest of them were caught with a casting net in Soyangho (Lake), Taehoman (Bay) and Paekkokchosuchi(Pond). Seven species of trematode metacercariae including two unidentified ones were detected from 1,305 pond smelts. The number of detected trematode metacercariae according to the species are as follow: Clonorchis sinensis 8, Holostephanus nipponicus 7, Cyathocotvle orientalis 24, DipLostomum sp. 14, and Metorchis orientalis 7. From the above results, it was confirmed that H. olidus plays a role as the second intermediate host of some kinds of trematode including C. sinensis in Korea. Our report shows possible clonorchiasis caused by eating raw pond smelts.

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Anisakiasis Involving the Oral Mucosa

  • Choi, Sang Kyu;Kim, Cheol Keun;Kim, Soon Heum;Jo, Dong In
    • Archives of Craniofacial Surgery
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    • v.18 no.4
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    • pp.261-263
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    • 2017
  • Anisakis is a parasite with life cycles involving fish and marine mammals. Human infection, anisakiasis, occurs with the ingestion of raw infected seafood and usually presents with acute or chronic gastrointestinal symptoms from esophageal or gastric invasion. We report a rare caseinvolving the oral cavity. A 39-year-old male presented with oral and sub-sternal pain of one day duration after eating raw cuttlefish. Physical examination revealed areas of erythema and edema with a central white foreign particle on the labial and buccal mucosa. With microscopic field we could remove the foreign material from the lesions. The foreign material was confirmed to be Anisakis. Anisakis was also removed from the esophagus by esophagogastroduodenoscopy. The patient was discharged the following day without complication. Anisakiasis is frequently reported in Korea and Japan, countries where raw seafood ingestion is popular. The symptoms of acute anisakiasis include pain, nausea, and vomiting and usually begin 2-12 hours after ingestion. The differential diagnosis includes food poisoning, acute gastritis, and acute pancreatitis. A history of raw seafood ingestion is important to the diagnosis of anisakiasis. Treatment is complete removal of the Anisakis to relieve acute symptoms and prevent chronic granulomatous inflammation.