• Parasites, Hosts and Diseases
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• v.30 no.4
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• pp.263-268
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• 1992

A study was presented on the anisakid larvae in Astroconger myriaster which were caught at the Southern Sea and waled at Pusan area. The nematodes were morphologically classified into Anisakis sp. and Centracgecum sp. after fixation in 70% ethanol and clearing in lactophenol. Total of 1, 768 larval anisakids were collected from 259(67.8% positive rate) out of 382 examined A. myriaster. Total 642 larvae of Anisakis sp. were obtained from 94 (24.6%) and 1, 126 Ccntracaecum sp. were recovered from 165 (43.1%) fish. The average number of worms per infected fish was 4.6. The infection rate increased according to the length of fish, and all of the fish over 71 cm were found infected. The numbers (proportions) of recovered worms by the organs were 1, 440 (80.5%) in the omentuin, 166(9.4%) in the intestine, 107(6.0%) in the stomach, 32(1.8%) in the skin, 18(1.0%) in the muscle, 13(0.7%) in the liver, and 2(0.1%) in the head. The larvae in the muscle may infect the humans who are enjoying raw sliced meat of the fish.

• Parasites, Hosts and Diseases
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• v.26 no.3
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• pp.207-214
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• 1988

The Hongcheon river system knows down through the Hongcheon area of Kangwon-do, and reaches to the Cheongpyeong "Dam in Kyonggi.do. Stool specimens from the inhabitants residing along the Hongcheon river basin were examined to detect infection rates of Metagonimus sp. , and the intermediate hosts were collected to detect larval stages. The results obtained were as follows: 1. Thirty-nine (33 males and 6 females) out of 529 (314 males and 215 females) inhabitants were infected with Metagonimus sp., showing a total positive rate of 7.4%. 2. In eight areas surveyed, the specimens from Kulji.ri of Bukbang-myon at the middle part of the river showed the highest positive rate of 26.9% (14 positives out of 52) (males; 38.2%), The specimens from Mogog-ri of Seo-myon at the downstream of the river showed a positive rate of 10.4%(13 positives out of 125) (males; 12.6%). The positive rates in other regions were less than 10%. 3. The density of the first intermediate host, Semisulcospira sp., was the highest in Kulji.ri of Bukbang-myon (10~20 snails per $m^2$), and the infection rate of Metagonimus cercariae in the snails was 10.7%(13 positives out of 121 snails). 4. The infection rate of Metagonimus metacercariae in Zacco platypus, the freshwater Bish favorably eaten raw by the inhabitants, was 68.25 (30 positives out of 44 fishes), and most metacercariae were detected under the scales (89.95). 5. Adult flukes were obtained from the small intestine of a rat, 15 days after infection with the metacercariae obtained from Z. platypus. These adult cukes were identified to be the same species as thcse obtained from human hosts. By this survey, new endemic areas of Metagonimus infection were discovered along the Hongcheon river basin and the main source of infection was the fresh water ash, Z. platypus.

• Journal of fish pathology
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• v.9 no.2
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• pp.119-126
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• 1996

We report on the variation of infection and histopathological change of Microcotyle sebastisci parasitic on cultured rockfish, Sebastes schlegeli, in Namhae Islands and Kamak Bay from April to October in 1995. Microcotylosis due to Microcotyle sebastisci occurred among cultured rockfish, Sebastes schlegeli. This parasite was not found on the host fish from June to July. Parasite sites were mainly consist of 2nd and 3rd gill arch`s filaments of rockfish. Also, the sites were secreted in large quantity of mucus with a very small bleeding. In Namhae Islands, maximum values of prevalence, relative density and mean intensity were found on September 1995, as 40.0%, 30.7 and 76.8, respectively. In Kamak Bay, maximum values of prevalence, relative density and mean intensity were obtained on October 1995, as 46.0%, 40.5 and 88.0, respectively. Histopathological changes of the heavily infested gills were showed necrosis, epithelium of the gill filaments underwent hyperplasia with fusion of the lamella and filamental clubbing. And a bacterial colony is invaded on the surface of lamella epithelium.

• RED RIBBON
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• s.70
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• pp.46-49
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• 2006

VGX "FDA, 에이즈치료제 추가임상 승인"/ 印 에이즈 감염인 520만 명 초과/ 성문화에 개방적인 대학생, 에이즈 걱정은 별로 안 해/ 베트남 '에이즈 신부' 파문/ 수혈로 에이즈 감염 국가보상 추진··· 여야 의원 12명 무상치료 등 법안 발의/ 에이즈 감염인 해고 못 한다/ 고흥군, 청소년 에이즈 예방 조기교육/ 에이즈 감염인들 '힘겨운 삶'/ "에이즈 감염인 자살률 일반인 10배"/ 씨티은행, 어린이 에이즈환자에 기부금/ 印에이즈女 지방선거 도전 "내 나라 감염확산 막고 싶어"

• Korean journal of applied entomology
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• v.58 no.2
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• pp.89-99
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• 2019

In total, 654,362 adult mosquitoes were captured using black light traps in Gangwon-do Province of the Republic of Korea from 2012 to 2017. The collected mosquitoes were identified to the species level, placed in pools of up to 50 mosquitoes each, by species and date of collection, and screened for flaviviruses using a reverse transcription-polymerase chain reaction assay. A total of 276,224 adult mosquitoes were grouped in 7,721 pools for virus testing, and 68 flavivirus positive pools (0.9%) were detected. Flavivirus-positive products were confirmed by DNA sequencing. Japanese encephalitis viruses were detected in single pools collected from Chuncheon (2012, 2017: Culex pipiens, 2,728 and 1,111 mosquitoes, respectively), Hoengseong (2013: Culex orientalis, 19), and Gangneung (2017: C. pipiens, 724). All the Japanese encephalitis viruses detected were revealed as genotype V. Chaoyang viruses were detected in 63 pools of 5,055 Aedes vexans nipponii and a single pool of 585 C. pipiens collected in Gangwon-do Province from 2012 to 2017. Chuncheon was the region with the highest minimum infection rates (MIR, 0.32) and maximum likehood estimate (MLE, 0.33; confidence interval (CI) 95%, 0.23-0.46) of A. vexans nipponii for Chaoyang virus, followed by Hoengseong (MIR 0.30, MLE 0.30, CI 0.16-0.52) and Gangneung (MIR 0.21, MLE 0.21, CI 0.13-0.31). Monthly MIR and MLE values of A. vexans nipponii for Chaoyang virus were the highest in October (MIR 0.38, MLE 0.38, CI 0.07-1.25).

• Childhood Kidney Diseases
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• v.8 no.2
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• pp.214-222
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• 2004

Purpose: Appropriate antibiotic therapy is important in childhood urinary tract infection and the selection of anibiotics is based on antimicrobial sensitivity of Escherichia coli. Extended-Spectrum ${\beta}-Lactamase(ESBL)$ is an enzyme produced by gram-negative bacilli that has the ability to hydrolyse penicillins, broad-spectrum cephalosporin and monobactam. There have been many reports of outbreaks of hospital infection by ESBL-producing organism. However, community-acquired infection with ESBL-producing organism are rare. This study was performed to retrospectively identify the incidence, characteristics and risk factors of ESBL (+) E. coli in community-acquired childhood UTI. Methods: In 288 children admitted in Ewha Womans University Hospital with E. coli UTI from Mar 2001 to February 2003, ESBL was isolated. ESBL was confirmed by the utilization of an automatized machine(Vitek GNS 433 card) using liquid medium dilution method according to National Committee for Clinical Laboratory Standard. The clinical characteristics, risk factors, antimicrobial resistance and treatment effectiveness were compared with ESBL(-) E. coli UTI. Results: Of 288 E. coli isolates, 31(10.8%) produced ESBL and 93.5%(29/31) occurred in infants younger than 6 month of age(P<0.01). No significant differences were noted in prior antibiotic use, prior admission history and underlying urogenital anomaly. Antimicrobial resistance was significantly higher in ESBL(+) E. coli compared with control patients (P<0.05). Although ceftriaxone showed 100% resistance in ESBL(+) E. coli, bacteriologic sterilization rate after ceftriaxone therapy was higher(96.8%). However, the recurrence rate of febrile UTI within 6 months was higher(25.8%) than control patients(6.6%). Conclusion: Epidemiologic study is required to find out any new risk factors of community-acquired ESBL(+) E. coli UTI and changes in selection of empirical antibiotics should be considered.

• 한국해양학회지
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• v.29 no.1
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• pp.1-4
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• 1994

The fish host, Acanthogobius hasta, was sampled monthly (April 1990 to March 1991) from Wando Islands, Korea, and examined for the parasitic Copepod Acanthochondria brevicorpa. Prevalence was positively correlated with fish length; parasitic copepods were only found in fishes > 24 cm TL. distinct seasonal variation in prevalence and intensity of A. brevicorpa infection was observed, although no data were available in April, June and July 1990 when no A. hasta was caught. Averaged over all samples, of the 83 fishes caught, 34.9% were infected with a mean intensity of 3 copepods per host No A. brevicorpa was found on the host between August and October. Ovigerous females of the Copepod were found between February and May, with an abundance peak in May. Young copepodids (Ci to CIII) of A. brevicorpa were not present throughout the year, but only late copepodids of CIV and CV were found on the fish in March and May. Results from the present study suggest that A. brevicorpa mainly produces larvae in spring, and may have a life cycle including additional hosts.

• RED RIBBON
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• s.58
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• pp.12-13
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• 2004

여성감염자의 수가 남성과 비슷해지고 있고, 아프리카$\cdot$선진국에서의 여성 에이즈 감염률은 남성에 비해 훨씬 높은 것으로 알려져 있다. 이에 UNAIDS는 올해 주제로 '여성과 에이즈'로 정하고 전 세계적인 관심과 예방을 강조하고 있다. 여성은 왜 남성에 비해 에이즈에 취약한 것인지 사회적 역학적 특성을 살펴보자.

• RED RIBBON
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• s.71
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• pp.22-25
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• 2006

이 시기에 오면 에이즈의 치료약도 속속 개발되어 전 세계적으로 감염인으로 살아가게 되는 숫자가 많이 늘어나게 되었다. 편견과 차별은 여전하였지만 점차 그들과 더불어 살아가야함을 알게 되는 시기이기도 하다. 그러나 선진국에서 감염률을 줄여가는 사이 후진국에서는 급격한 증가세를 보이는 등 심각한 불균형 양상을보이기 시작하였다. 이제 세계는 에이즈라는 공동의 적 앞에서 공조와 공존이라는 새로운 해법을 선택하게 되었다.

• 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.