• Parasites, Hosts and Diseases
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• v.29 no.2
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• pp.161-172
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• 1991

The complete life cycle of Echinostoma hertense has been maintained in the laboratory, using Lymnaea persia snails and Rana nigromaculata tadpoles as the first and second intermediate hosts. ICR mice was used as the definitive host. Within the egg of 5. hotense, the miracidium was fully matured in 13 days of incubation at $29~30^{\circ}C$. The miracidium was $93.8{\times}53.6{\;}{\mu\textrm{m}}$ in average size, covered with numerous cilia of $7~11{\;}{\mu\textrm{m}}$ length. The epidermal plates were arranged in 6-8-4-2 formula. The first generation rediae ($1.19{\times}0.27{\;}mm$ in average size) were observed in 14 days after miracidial challenge to the snails, and the second generation rediae ($1.40{\times}0.26{\;}mm$ in average size) in 30 days. The average sixte of the cercaria was $295.5{\times}145.0{\;}{\mu\textrm{m}}$. Their head crown was poorly developed, and collar spines were not yet observed. After a cercarial challenge to the tadpoles, all of the tadpoles became infected and the average worm recovery rate was 88.5%. The majority of the metacercariae (75.5%) were recovered from the muscle of the tadpole's posterior body and the rest (24.3%) from their gills. The metacercariae from the tadpoles were elliptical, and $167.7{\times}129.9{\;}{\mu\textrm{m}}$ in average size. The recovery rate of adults from the mice was difFerent by the age of the metacercariae grown in the tadpoles. The metacercariae younger than 5 hrs could not infect mice whereas those older than 6 hrs could infect mice. The recovery rate became higher as the metacercaria matured, with the peak recovery rate of 90.0 % at the metacercarial age of 9 days. Thereafter the recovery rate decreased to 55.0% at the age of 50 days. As shown by the above results, the whole life cycle of E. hcrtense has been completed in the laboratory. At least 55~58 days were required to maintain one egg-to-egg cycle of E. hortense.

• Journal of the Korean Society of Radiology
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• v.15 no.2
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• pp.165-171
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• 2021

To prevent the secondary hospital-acquired infection (cross-infection) from occurring in the general radiographic room in the department of radiology, the microbial measurement was conducted at the points making direct close contact with radiologists and patients. For the case of radiologists, the microbial measurement and incubation were focused on the x-ray tube handle of the radiation generating device, and, for the case of patients, the microbial measurement and incubation were focused on the chin supporting device, chest-contact point, and handle. Once disinfected with Aniosurf, the sterilized media were gathered and identified, and the microorganisms were confirmed. Based on the identification results, it was confirmed that the points making direct close contact with radiologists showed a value of 103 CFU for Proteus mirabilis, Staphylococcus epidermidis, Bacillus spp. and Candida spp., and that the points making direct close contact with patients showed a value of 103~5 CFU for Proteus mirabilis, Enterococcu faecium, Pseudomonas aeruginosa, NTM(Non-Tuberculosis Mycobacteria) and Candida spp.. It was also confirmed that the types and number of microorganisms gathered from the points making direct close contact with patients were greater. Fortunately, most of the involved microorganisms were observed to be on the skin surface and are known to become extinct when disinfected in accordance with the hospital-acquired infection control rules. However, since even minor exposure to such microorganisms may be lethal for patients with reduced immunity, caution must be taken. In particular, since the points making contact with patients showed a high level of microbial measurement, it was thought that it would be necessary for radiologists and personnel having frequent access to strictly disinfect the parts, such as instruments and handles, making frequent contact with patients. The purpose of this study was to announce the importance of safe microbial control in the radiographic inspection room in hospital, and this study is expected to be used as the baseline data for preventing hospital-acquired secondary infection and Nth infectious diseases.

• The Journal of the Korea Contents Association
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• v.14 no.12
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• pp.808-817
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• 2014

Purpose: This study was to investigate the recognition of skin infection (RSI) and management practice (MP) on caregivers in geriatric hospital. Methods: The subjects were 209 caregivers who work at geriatric hospital in G city and J do. Data were analyzed with ${\chi}^2$-test, t-test. and ANOVA using SPSS 18.0 program. Results: Prevalence rate of caregivers' skin diseases was 76.6%. Diagnosis of Skin disease was contact dermatitis 42.5%, scabies 26.9%, and skin xerosis 25.0%. The Mean RSI score was 3.81 and MP was 4.12. In addition, MP was significantly different by number of bed hospitals (F=4.63, p=.011) and number of caring patients (F=2.67, p=.049). Conclusion: This study will be a useful on continuing education for caregivers and basis for the guidance of medical infection control standards development.

• Korean Journal of Clinical Laboratory Science
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• v.53 no.1
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• pp.11-18
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• 2021

Respiratory viruses (RVs) cause infections in hospital environments through direct contact with infected visitors. In infection control, it causes major problems of acquired infections in hospitals by respiratory viruses. The surveillance data derived from clinical laboratories are often used to properly allocate medical resources to hospitals and communities for treatment, consumables, and diagnostic product purchases in the institutions and public health sectors that provide health care. An early diagnosis is essential in infection with respiratory viruses, and methods that can be used in diagnostic methods using respiratory samples include virus culture, molecular diagnosis, and analysis. A microchip provides a new strategy for developing a more diverse and powerful technology called point-of-care testing. The importance of the respiratory system should be applied strictly to the infection control guidelines to ensure the occupational health and safety of health care workers. Evidence of clinical efficacy, including this study, is challenging the long-standing paradigm for infection propagation. Additional assistance will be needed for frequent tests to detect respiratory viruses in inpatients who have begun to show new respiratory symptoms indicating infections requiring efforts to control the infection.

• Journal of Yeungnam Medical Science
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• v.9 no.2
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• pp.407-415
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• 1992

Among 85 patients with anti-HCV positive chronic liver disease, only 21.2% have past history of blood transfusion and over half the cases, they do not have any suspicious risk factors for HCV infection, 3 of 85 families show anti-HCV positive family members. On the other hand, 40 of 60 patients with HBsAg positive chronic liver disease show HBsAg positive family members. In Korea, HBV is transmitted mainly through vertical and intrafamilial infection but HCV disease might be rather horizontal and sporadic than vertical. To define the evident source of infection in sporadic hepatitis C, first of all, simple test with high sensitivity and specificity for diagnosis of HCV infection would be needed.

• Journal of the korean veterinary medical association
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• v.47 no.2
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• pp.165-176
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• 2011

구제역은 우제류 동물이 걸리는 급성열성전염병으로, 본 병에 걸린 동물은 발열이나 식욕부진을 지나 병명대로 구강과 혀 점막, 발굽 주위나 유방의 피부에 수포를 형성한다. 이후 이환된 가축은 섭취 장애나 보행장애가 일어나고, 산육능력이나 비유량이 저하됨에 따른 경제동물로서의 가치를 현저하게 떨어지게 한다. 또한 본 병의 전파는 극히 빠르고 동물이나 축산물에 대하여 엄격한 이동제한이나 방역조치가 본 병의 전파나 확대를 막기 위해 실시하기 때문에 본 병에 의해 생기는 경제적 피해는 농가의 지역단위 뿐만 아니라 국가단위에도 미쳐 심각하다. 그 때문에 자유무역을 표방하는 WTO체재하에 있어서도 구제역의 만연방지를 목적으로 한 무역제한은 국제적으로 용인되어져 오고 있고, 세계동물보건기구에 의해 국가나 지역단위의 청정도 구분이 장해져 각국의 법에 반영되어져 있다. 구제역의 병원체로 있는 바이러스는 숙주역이 넓고, 적지 않은 바이러스양에도 감염이 성립, 감염동물체내에서 바이러스가 신속하게 복제, 감염동물로부터 다량의 바이러스가 배설, 접촉전파만이 아닌 공기전파를 일으킨다는 등이 본 병의 전파나 확대에 유리한 복잡한 성성을 가질 경우에 구제역의 방역 및 박멸을 어렵게 하기 때문에 수의학영역에서 가장 경계해야할 전염병의 하나이다. 따라서 본 필자는 최근의 국내 구제역 발생상황속에서 관련자료정리를 하다가 대동물 임상수의사가 알아야 부분과 일본 동물위생연구소 등에서 구제역바이러스 인공감염 및 화학물질(T-1105)투여시험 결과 내역를 정리하여 소개해두고 저 한다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2022.11a
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• pp.232-235
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• 2022

본 논문은 딥러닝과 핸드 제스처, 미디어 파이프를 이용하여 비접촉식 키오스크를 만들어 (코로나19로 인한) 감염병 예방 및 대형마트에서 원하는 물건을 검색 후 편리한 구매를 위해 구현한 내용을 다룬다. 단순한 핸드 제스처 인식만을 이용한 것이 아니라 그림을 그리는 비접촉 제스처 인식을 더해 하나의 예술로써 제스처 인식을 더 많이 사용하고자 했다. 또한 하나의 손가락으로 그림을 그리는 것이 아닌 주먹을 쥐었을 때 그 중심을 인식해 그림을 그리는 방법을 이용해 기존의 방법보다 더 안정감 있게 그릴 수 있게 구현하였다. 현실에서 사용하기 위해 세부적인 기능들은 학습을 통해 기존보다 정확도가 향상된 미디어 파이프를 이용하였다. 빠른 처리 속도와 정확성에 초점을 두는 것이 아닌 하나의 미디어 아트로써 키오스크를 설계하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.453-454
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• 2022

Covid-19 및 최저임금 인상의 영향으로 무인 결제 시스템인 키오스크의 도입률이 급속히 증가하고 있다. 그러나 불특정 다수가 이용하는 키오스크의 특성상 주의를 기울이지 않으면 감염의 매개체가 될 수 있다. 따라서 본 논문에서는 Mediapipe를 활용하여 비접촉 키오스크 제어 방법을 설계 및 제안한다. 이는 카메라를 이용한 커서 제어 방식으로 키오스크뿐만 아니라 카메라와 모니터만 있으면 다양한 환경에서 커서를 제어할 수 있다.

• Journal of radiological science and technology
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• v.35 no.3
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• pp.211-218
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• 2012

This study was performed to understand the bacteriologic contamination level of radiological equipments which have frequent contacts with patients in the Department of Radiology of an university hospital in Busan area. Before sterilizing in-patient of the radiology rooms, MRSA, VRE, acinetobacter baumannii, candida albicans, and enterococcus sp. were detected. After sterilization, all the bacteria were not found. As examine times become longer, more bacteria were detected and after 7 hours, bacillus sp.(GPR), CNS, acinetobacter baumannii, and Enterococcus sp. were detected. After examining infected patients, bacillus sp.(GPR), VRE, enterococcus sp. CNS, and micrococcus sp. were detected and on the hands of radiological technologists, CNS, enterococcus sp. escherichia coli, and enterobacter sp. were detected. Similar species of bacteria were detected from each radiology room, but pseudomonas aeruginosa was detected on the handles of portable radiological equipments and the chair in the waiting room. Therefore, it is the most important to regularly sterilize radiological equipments and devices which have frequent contacts with patients and to sterilize them right after the use of infected patients in order to prevent the spread of infection. Also, thorough hand washing, education on infection and management for the characteristics of Department of Radiology should be performed for the systematic prevention of infection.

• 건강소식
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• v.30 no.6 s.331
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• pp.21-21
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• 2006

대한소아청소년과개원의협의회(회장 임수흠)는 최근 'A형 간염에 대해 일반인들이 잘못 알고 있는 다섯 가지 오해'를 발표했다. 협의회는 '오염된 음식물이나 식수, 개인 접촉 등을 통해 전파되는 수인성 전염병인 A형 간염은 최근 어린이와 청소년의 항체 보유율이 10% 이하로 떨어져 집단 감염 위험이 커지고 있다.'면서 '적극적인 예방 활동이 필요하다.'고 강조했다.