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정하진 ( Hajin Jeong ),김지연 ( Jiyeon Kim ),최인수 ( Insu Choi ),성창민 ( Changmin Seong ),박자윤 ( Jayun Park ),박지영 ( Jiyeong Park ),안아진 ( Ahjin An ),곽진주 ( Jinju Gwak ),장미선 ( Miseon Jang ),서계원 ( Kyewon Seo ),김용환 ( 한국동물위생학회(구 한국가축위생학회) 2020 韓國家畜衛生學會誌 Vol.43 No.1
Hepatitis E Virus (HEV) infection is a worldwide disease and the primary cause of acute viral hepatitis in the world. It can be isolated from many different species including pigs. HEV is a zoonotic pathogen and foodborne disease. The main animal reservoir is domestic pigs. It is usually asymptomatic in pig but it is a public health concern, causing acute hepatitis in humans of varying severity. This study focused on the presence of HEV in pig and pork product. One hundred feces and one hundred fifty serum samples were randomly collected from pigs in slaughterhouses in Gwangju from November in 2018 to February in 2020. In addtion, seventy-five pork products were collected from markets in Gwangju. Feces and pork product samples were examined for the presence of HEV RNA using an reverse-transcription realtime PCR (RT-qPCR) assay. Serum samples were tested for the presence of HEV-specific IgG antibodies using Enzyme-linked immunosorbent assay (ELISA). HEV antigen and antibody positive rates were 3.0% (3/100) and 19.3% (29/150), respectively, in Gwangju and nearby areas such as Jeonnam and Jeonbuk. However, HEV antigen was not detected from any of pork product in this study. In conclusion, the prevalence of HEV should be continuously monitored because HEV was sporadically detected in Gwangju and nearby areas.
나호명 ( Ho Myung Na ),배성열 ( Seong Yeol Bae ),고바라다 ( Ba Ra Da Koh ),박재성 ( Jae Sung Park ),서윤정 ( Yun Jeong Seo ),정하진 ( Ha Jin Jeong ),박자윤 ( Ja Yoon Park ),박성도 ( Seong Do Park ),김은선 ( Eun Sun Kim ),김용환 ( Y 한국가축위생학회 2016 韓國家畜衛生學會誌 Vol.39 No.2
The antibody titers against Coxiella burnetii (Q fever) among cattle raised in Gwangju area were analyzed from February to October in 2015. The prevalence of antibodies in collected bulk-tank milk from 7 dairy cattle farms was 57.1% and the seroprevalence of 210 dairy cows randomly selected from those farms was 7.1%. By age, the seroprevalence was 3.3% in less than 4 years of age, 9.0% between 4 and 7 years of age, and 28.6% in more than 8 years of age. On the other hand, the seroprevalence of the Hanwoo cattle was 0.4%. The result suggested that the antibodies against Coxiella burnetii increase as the age of the dairy cows increases and therefore, it is necessary to keep monitoring the prevalence of Q fever in Gwangju area.
김용환 ( Yong Hwan Kim ),박종태 ( Jong Tae Park ),김재익 ( Jae Ik Kim ),김현중 ( Hyun Joong Kim ),김태순 ( Tae Soon Kim ),장미선 ( Mi Sun Jang ),김정남 ( Jeong Nam Kim ),박덕웅 ( Duk Woong Park ),배성열 ( Seong Yeol Bae ),박자윤 ( 한국가축위생학회 2008 韓國家畜衛生學會誌 Vol.31 No.2
This study was carried out to investigate the prevalence of fascioliasis of slaughtered and farmed cattle in Gwangju area from February to November in 2007. A total of 1,000 cattle fecal samples were collected from slaughter houses (n=805) and farms (n=185). Twelve (1.2%) were found as positive cases with excretion of the egg of Fasciola spp in the fecal specimens, and 128 (12.8%) were positive in intestinal parasitism using the flotation and sedimentation procedures. The infection rate of fluke larvae from the slaughtered cattle at abattoirs in Gwangju was 0.75%(6 out of 805 heads). In histopathology, there were several liver lesions such as inflammation with infiltration of eosinophil, polymorphonuclear cells, mononuclear cells and multinucleated giant cells, proliferation of connective tissue, calcification and abscess formation.