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Seroprevalence of subtype H3 influenza A virus in South Korean cats
Jeoung, Hye-Young,Shin, Bo-Hye,Lee, Won-Ha,Song, Dae-Sub,Choi, Young-Ki,Jeong, WooSeog,Song, Jae-Young,An, Dong-Jun SAGE Publications 2012 JOURNAL OF FELINE MEDICINE AND SURGERY Vol.14 No.10
<P>To investigate the potential transmission of subtype H3 influenza virus to cats, a serological survey was carried out in South Korea. Serum samples (n=1027) were obtained from 809 pet cats and 218 domesticated cats living in urban colonies (D-cats) from 2008 to 2010, and tested using an influenza anti-nucleoprotein (NP)-specific enzyme-linked immunosorbent assay (ELISA) and the haemagglutination inhibition (HI) test, which was recommended by the World Organization for Animal Health. Anti-influenza virus antibodies were detected in 3.12% and 2.43% of cat sera tested using the NP-specific ELISA and HI test, respectively. Anti-H3 antibodies were also identified when the HI assay was used for influenza virus serotyping. These data may indicate the sporadic transmission of subtype H3 influenza virus from other infected species to cats in South Korea.</P>
Molecular characterization and variability of the genes from EHV-1 in Korea
Hye-young Jeoung(Hye-young Jeoung),Hyung-Woo Kang(Hyung-Woo Kang),Eun-Yong Lee(Eun-Yong Lee),Kyoung-Ki Lee(Kyoung-Ki Lee),Ji-Young Park(Ji-Young Park),Bok-Khyung Ku(Bok-Khyung Ku) 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
Investigation of persistent infection with bovine viral diarrhea in Korean native cattle
Hye-Young Jeoung(Hye-Young Jeoung),Eun-Yong Lee(Eun-Yong Lee),Se-Jin Park(Se-Jin Park),Hyung-Woo Kang(Hyung-Woo Kang),Ji-Young Park(Ji-Young Park),Kyoung-Ki Lee(Kyoung-Ki Lee),Bok-Kyung Ku(Bok-Kyung K 한국예방수의학회 2022 한국예방수의학회 학술대회자료집 Vol.2022 No.-
Jeoung, Hye-Young,Lee, Soo-Kyoung,Park, Jee-Yong,Kim, Hyun-Jeong,Yang, Sun-Joo,Lee, Sang Kyu,Ko, Jin A,Yang, Hyoung-Seok,Park, Changnam,Kim, Sung-Hee,Kang, Hae-Eun,Choi, Jun-Gu Elsevier 2018 Journal of equine veterinary science Vol.69 No.-
<P><B>Abstract</B></P> <P>Contagious equine metritis is a highly transmissible venereal disease of horses caused by the bacterium, <I>Taylorella equigenitalis</I>. After the first identification of <I>T. equigenitalis</I> in Korea in 2015, targeted surveillance of Thoroughbreds was conducted using real-time polymerase chain reaction. Initially, the prevalence of <I>T. equigenitalis</I> in the Thoroughbred population tested was 13.5% (71/526). All positive animals were placed under quarantine and treated according to previously described protocols (Jeoung et al., J Equine Vet Sci, 2016; 47:42–6). After the initial outbreak identification, annual national surveillance for <I>T. equigenitalis</I> was conducted from 2015 to 2017, and by 2017, prevalence was reduced to 1.0% (22/2,171). Most positive cases were located in Jeju province, the major horse-rearing region in Korea. A total of 12 <I>T. equigenitalis</I> strains were isolated during the surveillance period, and multilocus sequence typing (MLST) and eBURST analysis were applied to determine epidemiological characteristics. All Korean strains showed a unique MLST allelic profile (1-2-1-2-2-2-1; <I>gltA</I>-<I>gyrB</I>-<I>fh</I>-<I>shmt</I>-<I>tyrB</I>-<I>adk</I> in order) and were classified as sequence type 55. In addition, they showed little relationship with <I>T. equigenitalis</I> strains isolated from other countries. Considering the unique biological and genetic characteristics of the Korean isolates, effective quarantine measures and continued surveillance will be required to eradicate the disease and prevent incursions of additional <I>T. equigenitalis</I> strains into Korea.</P> <P><B>Highlights</B></P> <P> <UL> <LI> In Korea, a national <I>T. equigenitalis</I> surveillance program conducted in Thoroughbred horses showed a decrease in prevalence from 13.5% in 2015 to 1.0% in 2017. </LI> <LI> Characterization of 12 Korean <I>T. equigenitalis</I> isolates showed identical bacteriological properties and demonstrated a unique multilocus sequence typing (MLST) profile (1-2-1-2-2-1). </LI> <LI> All Korean <I>T. equigenitalis</I> isolates were classified as MLST sequence type 55 (ST55) and showed little genetic relationship with isolates from other countries. </LI> </UL> </P>
Jeoung, Hye-Young,Lee, Won-Ha,Jeong, Wooseog,Ko, Young-Joon,Choi, Cheong-Up,An, Dong-Jun Elsevier 2010 Research in veterinary science Vol.89 No.2
<P><B>Abstract</B></P><P>Virus-like particles (VLPs) are particles that consist of viral capsid proteins and are structurally similar to authentic virus. To express VLPs of the porcine encephalomyocarditis virus (EMCV) and investigate their efficacy and immuno response <I>in vivo</I>, a plasmid (P12A3C-pCI) containing the P12A and 3C genes of the EMCV-K3 viral strain was constructed. The VLPs of EMCV-K3 were successfully assembled in 293FT cells on 3 days after transfection with P12A3C-pCI and were identified as particles of about 30–40nm using transmission electron microscopy (TEM). In an <I>in vivo</I> experiment, the murine cytokines induced by VLPs of naked DNA vaccine showed that the Th1 indicators IL-2, TNF-α and GM-CSF, and the Th2 indicators IL-4 and IL-10 were increased. The immunization of mice with the P12A3C-pCI plasmid induced high levels of neutralizing antibody from 128- to 256-fold and led to a significant protection ratio (90%) after challenge with EMCV-K3 (wild-type strain). These VLPs may represent a novel vaccine strategy for the control of EMCV infection on pig farms.</P>