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- 저자 : 류광수 ( Kwang-soo Lyoo ) (검색결과 3 건)
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류광수 ( Kwang-soo Lyoo ) 대한인수공통전염병학회 2017 창립총회 및 학술대회 초록집 Vol.2017 No.1
Coxiella burnetii is a zoonotic agent and causes coxiellosis, which is a cause of reproductive failure in a range of animal species, including abortion and stillbirth and Q fever, which is most often characterized by an acute flu-like illness, mild pneumonia, and/or hepatitis in humans. While livestock are well recognized worldwide as a source of infection, the zoonotic risk of C. burnetii infection in companion animals such as dogs may be overlooked. For serological diagnosis, indirect immunofluorescent assay (IFA) and enzyme-linked immunosorbent assay (ELISA) are generally considered good methods for prevalence surveys of coxiellosis. In this study, we conducted a nationwide survey of the seroprevalence of previous exposure to C. burnetii in dogs, dairy cattle, and Korean native cattle (a primarily beef breed) in South Korea. Serum samples obtained from 3087 Korean native cattle, 1224 dairy cattle, and 1023 dogs were collected from eight provinces in South Korea, and IFA and ELISA were performed to test for seropositivity. The prevalence of C. burnetii was 1.7% in Korean native cattle, 10.5% in dairy cattle, and 2.9% in dogs. This is the first report identifying previous exposure to C. burnetii in South Korean dogs. Furthermore, the presence of C. burnetii antibodies in companion and feral dogs indicates that dogs can be a potential reservoir species for zoonotic risk of C. burnetii infection in South Korea. Therefore, more detailed studies aiming to clarify epidemiological factors should be performed in the future.
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한경수,류광수,박봉균,Han, Kyung-soo,Lyoo, Kwang-soo,Park, Bong-kyun 대한수의학회 1999 大韓獸醫學會誌 Vol.39 No.1
The 2,078 blood samples from 148 swine farms were collected and tested by IFA for porcine reproductive and respiratory syndrome(PRRS) virus antibody to know what type of PRRS prevails by the area. Clinically reproductive form of PRRS occurred in swine farms of 3/27, 3/87, and 2/34 in eastern, central and western areas, but the seroprevalence of those areas was different as 6.5%, 23.3%, and 17.6%, respectively. However, respiratory form of PRRS occurred more frequently, and the number of farms manifested with the respiratory form of PRRS in the eastern, central and western areas was 22/27, 71/87, and 30/34, respectively. The seroprevalence of that form of PRRS in the eastern, central and western areas was 52.2%, 67.1%, and 51.6%, respectively. Subsequently mixed form of PRRS occurred more frequently in the central area and the number of farms of eastern, central and western areas was 2/27, 13/87, and 2/34, respectively. The PRRS seroprevalence of the eastern, central and western areas was 58.6%, 54.0%, and 19.2%, respectively. Collectively the PRRS seroprevalence of eastern, central and western areas was 43.8%, 59.3%, and 38.2%, respectively. Overall seroprevalence of PRRS in Korea was 51.8%. In conclusion, the reproductive or the respiratory form of PRRS has been still in trouble in the Korean swine industry and PRRS control measures have to be taken in consideration.
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돼지 유행성 설사병(porcine epidemic diarrhea)의 상재화에 대한 혈청학적 증명
박봉균,한경수,류광수,김준영,정현규,Park, Bong-kyun,Han, Kyung-soo,Lyoo, Kwang-soo,Kim, Jun-young,Jeong, Hyun-kyu 대한수의학회 1998 大韓獸醫學會誌 Vol.38 No.4
The persistence of porcine epidemic diarrhea virus(PEDV) infection was demonstrated in 7 swine farms employing continuous pig flow management even after seasonal outbreaks. Clinically, sporadic postweaning diarrhea was a major concern in those farms. Subsequently circulatory antibody detection using serum neutralizing test made useful for confirmation of PEDV persistent infections. The persistence of PEDV in the premise might have induced recurrence over the period of time.
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