• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2001.05a
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• pp.528-529
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• 2001

1998년 9월 말경, 경남 지역에서 양식되고 있는 은어(Plecoglossus altivelis)에서 미포자충증이 발생하였다. 하루 약 200마리씩의 폐사(약 10% 폐사율)가 10일째 진 행되고 있었다. 발병 시작 당시 수온은 22~24$^{\circ}C$ 이었으며, 발병 후 약 17$^{\circ}C$ 부근 까지 낮추어 유지하고 있었다. 세균배양 결과는 음성이었으며, 미포자충 이외 기타 기생충 감염은 없었다. 감염 개체에 대한 병리조직학적 검사를 실시한 결과를 보고하고 숙주에 대하여 미칠 수 있는 본 기생충증의 영향에 대하여 고찰하고자 하였다. (중략)

• Proceedings of the Korean Society of Veterinary Pathology Conference
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• 2001.09a
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• pp.32-32
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• 2001

2000년 4월 1일 경, 경북 구룡포소재 넙치양식장에서 임상적으로 채색흑화 및 복수의 저류를 동반하며 1 주일만에 총 10 만미 중 약 2%(2,000미)가 급성 폐사하는 질병이 발생하였다. 발병 당시의 수온은 13~14$^{\circ}C$, 염분농도는 32~33$ extperthousand$로 측정되었다. 세균검사 및 외부기생충 검사에서는 음성이었다. 본 질병은 저수온기 넙치에서 발병하는데, 작년 4월에 발증예가 실험실로 의뢰된 적이 있으며 올해에는 2월 말경부터 경북 포항 및 남해 상주에서도 발증ㆍ폐사되기 시작하여 넙치 양식장에 큰 피해를 입히고 있다. 따라서 이들 질병예에 대한 병리조직학적 검사를 실시하였기에 그 결과를 보고하고 가능 원인체에 대하여 고찰하고자 하였다. (중략)

• Parasites, Hosts and Diseases
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• v.32 no.1
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• pp.27-34
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• 1994

The results of fecal examination for helminth eggs and protozoan cysts in Seoul Paik Hospital during 1984-1992 are reported. Fecal specimens of a total of 52,552 out- or in- patients were examined by formalin-ether sedimentation and/or direct smear method. The overall egg Positive rate of helminths was 6.5% and the cyst Positive rate of Protozoa 2.5%. The egg positive rate (number of positive cases) for each species of helminth was; Clonorchis sirensis 3.2%(1,667) , Trichuris trichiura 2.0%(1,089), Metqsonimw yokogawai 1.2% (613), Ascaris lumbricoides 0.2% (100), Trichostrongylus orientalis 0.1% (34), Taenin spp. 0.05% (28), Hymenolepis nana 0.03% (181), hookworms 0.03% (17), Poragonimlrkf westermani 0.02% (12), Echinostoma spp. 0.03% (12), Enterobius uermiculans 0.02% (10), Strongyloides stercora;is (larvae) 0.01% (6) , and Diphyllobothrium latum 0.004% (2). The cyst positive rate (number of positive casesl for each protozoan was; Entamoebc coli 1.1% f5881, Snnolimox nana 0.8% (402), Ginrdin lomblia 0.3% (173) , Entamoeba histo;utoca 0.3% (164), and Trichomonos hominis (trophozoites) 0.004% (2). Viewing from the data of 9 years, it was evident that the prevalence of soil-transmitted helminths such as A. Lumbricoines and T. trichiuro has been decreasing remarkably, while that of snail transmitted helminths such as C. sinenris and intestinal protozoans has not.

• Parasites, Hosts and Diseases
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• v.28 no.4
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• pp.213-220
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• 1990

The employees at the Pohang industrial area, where Clonarchis sinensis has been known to be endemic along the Hyungsan River, were examined parasitologically for clonorchiasis and a part of the infected cases were surveyed with a questionaire to outline the recent infection status of C. sinensis and epidemiological parameters in the area. Total of 3, 180 cases were tested by intra- dermal inoculation of C. sinensis antigen (Green Cross Co., Korea), and 834(26.2%) were found positive. Out of the positive cases, 598 were subjected to (ecal examination for helminth ova. The examination revealed 129(21.6%) ova Positive cases of C. sinensis, and Trichuris trichiura 1.7%, Ascaris lumbricoides 0.3%, and Metagonimus yokogawai 0.2%. The questionaire analysis showed some significant difFerences between the infected and non-infected(control) groups. The infected cases were less educated than the control, and they lived at the closer area to the river, and most of them lived there over 20 years. Also they preferred eating raw fresh water fish. Most of the detected cases were treated with prasiquantel and found negative for the eggs in 85.3% of them 1 year after the treatment. The present data reveal markedly decreased endemicity of clonorchiasis compared with previous prevalence rates but still clonorchiasis is endemic in the Hyungsan river basin. A comprehensive measure including case detection, treatment and education for parasite control should be applied to control clonorchiasis in such endemic areas.

• Parasites, Hosts and Diseases
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• v.32 no.2
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• pp.93-100
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• 1994

In order to know the species and frequency of human parasitic infection diagnosed by biopsy, 149 cases (0.18%) of parasitic infection were reviewed, which were selected from 80,947 biopsied materials submitted for routine histopathological examination during a period of 10 years from 1980 to 1989 at Department of Pathology, Chonnam National University Hospital. They consisted of 112 cases of cysticercosis, 17 paragonimiasis, 7 clonorchiasis, 4 amebiasis, 1 sparganosis, 1 enterobiasis, 1 anisakiasis, and 1 fascioliasis respectively Based on morphological preservation of cysticercus, they could be divided into mild (20.2%), moderate (40.4%), and severe (39.4%) degeneration. Except 2 cases biopsied at the lungs, 15 cases of ectopic paragonimiasis were located at abdominal cavity (8 cases) and central nervous system (7 cases). One case of intrahepatic fascioliasis was observed. This is the 13th human fasciollasis reported in Korea. From the above results, the frequency of parasitic infections found in biopsied specimens was on the decrease as the year passed by, but biopsy is very useful diagnostic method on tissue parasites such as cystlcercosis and ectopic paragonimiasis.

• Parasites, Hosts and Diseases
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• v.26 no.4
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• pp.275-284
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• 1988

This study was performed to observe the present status of intestinal parasitic infections in a remote island, Yondo, located in southern part of Jeonranam-do (Province) , Korea. In February and May, 1988, total 1,011 individual stool samples were collected and examined for intestinal helminths and protozoa using formalin-ether centrifugal sedimentation technique. The results are summarized as follows: 1. Of 1,011 inhabitants examined, 398(39.4%) were positive for intestinal parasites. Helminth positives were 372(36.8%) , and protozoan cyst positives were 56(5.5%) . 2. Ten species of parasites were found. Trichuris trichiura revealed the highest infection rate of 27.5%, Ascaris lumbricoides 17.4%, Taenia sp. 5.8%, Entamoeba coli 3.3%, Ciardia Zamblia 1.5%, Endelimax nasa 0.8%, Hymenolepis nana 0.4%, Hookworm 0.2%, Trichostrongylus orientalis 0,2%, and Entamoeba histolytica 0.2%, respectively. 3. The female group showed higher positive rate(44.0%) than males (34.7%). Also, higher positive rates were observed among adults as compared with the group younger than 10 years old. 4. Average value of E.P.G. was 1,876(range 200∼17,800) in A. lumbricoides positives, and 327 (range 200∼1,600) in T. trichiura positive cases. 5. In helminth egg Positive cases, single in(traction was 63.4%, double infection 34.7%, and triple infection 1.9%, respectively. Among protozoan cyst positives, single infection was 94.6%, and double infection was 5.4%. The present study revealed that the prevalence of intestinal parasites among inhabitants in Yondo island is still so high that special control measures should be performed.

• Parasites, Hosts and Diseases
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• v.31 no.1
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• pp.71-74
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• 1993

A 43-year-old Korean woman with billary ascariasis accompanied by cholellthiasis is reported. Her chief complaints were abdominal pain, nausea, and vomiting. She had the past history of several attacks of abdominal pain in her childhood. ciliary stones were recovered from the left hepatic duct after cholecystectomy, which contained degenerated cuticle or body wall, and numerous eggs of Ascaris lumbriooides. It is strongly suggested that the ciliary stones were formed from the dead Ascmis worm(s). This is a rare case of biliary ascariasis during the recent 5 years in Korea.

• Korean Journal of Food Science and Technology
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• v.32 no.4
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• pp.970-973
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• 2000

Heavy metal contents and parasite egg examination for the safety evaluation of dropwort(Oenanthe javanica) from the inside of Chonnam province(5 regions) and suburbs of Kwang-ju(1 region) were investigated. The contents of heavy metals(Hg, Pb, As, Cd, Mn, Zn, Cu) were determined by the Atomic Absorption Spectrophotometer and parasite eggs were examined to various internalparasites(F. hepatica, C. sinesis, G. lamblia, Cryptosporidium, A. lumbricoides and A. duodenale). First, Hg and As were detected in trace level and $0.003{\sim}0.01\;ppm$. Pb was not detected in all samples and Cd contents of dropworts were detected $0.014{\sim}0.087\;ppm$. The contents of 4 kinds of heavy metals(Hg, As, Pb and Cd) in dropworts cultivated in various regions(6 regions) were not detected or trace levels. Therefore, dropworts cultivated in Chonnam province and suburbs of Kwang-ju were free from contamination of heavy metals. Moreover, the result of parasite egg examination(Trematoda, Protozoa and Nematoda) was not detected in all samples.

• Parasites, Hosts and Diseases
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• v.32 no.1
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• pp.61-63
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• 1994

A follow-up stool examination was done to know the status of intestinal parasitic infections in Army soldiers who were stationing in Whachon-gun, Kangwon-do, Korea in 1993. Of 233 examined soldiers, Infections with Clonorchis sinensis (0.4%), Metagonimus spp. (0.9%), Echinostomc honene (0.4%), Neoniplostomum seodenis (0.4) and Ginrdin lomblic (3/233) were found. S. honene and N. seouLensis infections were each 75th, and 27th cases in Korea. Regular control program of intestinal parasitic Infections might be able to contribute to diminish the prevalence rate in young Army soldiers in Korea.

• Journal of Chest Surgery
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• v.41 no.4
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• pp.527-531
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• 2008

Hydatid disease is a parasitic infection that is caused by the larval stage of Echinococcus granulosus. This disease is distributed worldwide, but it is rare in Korea. A 34-year old foreign male worker from Mongolia presented with cough and chest discomfort. Computed tomography of. the chest showed a cystic mass in the upper lobe of the right lung. The cyst was surgically resected, and the pathological study confirmed a hydatid cyst. The patient was given albendazole postoperatively to prevent a relapse. We report here on a surgical case of pulmonary hydatid disease along with a review of the literature.