A5008601467- Animal Disease Management and Epidemiology
- Animal Virus Infections Studies
- Vector-Borne Animal Diseases
- Viral gastroenteritis research and epidemiology
- Veterinary medicine and infectious diseases
- Microbial infections and disease research
- Viral Infections and Immunology Research
- Virus-based gene therapy research
- Salmonella and Campylobacter epidemiology
- Veterinary Oncology Research
- Animal Nutrition and Physiology
- Healthcare and Venom Research
- Bacterial Identification and Susceptibility Testing
- Sarcoma Diagnosis and Treatment
- Herpesvirus Infections and Treatments
- Renal and related cancers
- Diphtheria, Corynebacterium, and Tetanus
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Bird parasitology and diseases
- Infective Endocarditis Diagnosis and Management
- Rabies epidemiology and control
- Animal Genetics and Reproduction
- Nutrition, Health and Food Behavior
- Animal health and immunology
- Diverticular Disease and Complications
Jeju National University
2011-2023
National Institute of Fisheries Science
2018-2019
Influenza A virus (FLUAV) causes serious diseases in both poultry and humans. Various host proteins, including Mx1, are considered candidates for avian influenza (AI) resistance. After infecting Jeju Native chicken embryo fibroblasts (CEFs) with three types of AI viruses, we performed gene expression profiling, identified single nucleotide polymorphisms (SNPs) through RNA-sequencing, confirmed phenotypes showing antiviral activity vitro. Highly pathogenic viruses upregulated FGF2, LYN, FLT4...
Since the 2013-2014 incursion of virulent G2b porcine epidemic diarrhoea virus (PEDV) pandemic strains in South Korea, frequent moderate-scale regional outbreaks have recurred. In particular, areas Jeju Island with extensive swine production faced repeated epidemics since re-emergence 2014. The current study reports complete genome sequences and molecular characterization representative PEDV responsible for 2018 endemic on Island. All isolates were determined to belong genetically highly...
After the unintentional vaccination of LOM vaccine strain in 2014, classical swine fever virus (CSFV) reemerged naïve pig herds on Jeju Island, South Korea, which had been a CSF-free region with non-vaccination policy for decade. Since re-emergence, endemic outbreaks CSFV have occurred island, causing enormous damage to provincial farms. The present study reports complete genome sequences and molecular characterization LOM-derived field strains responsible current Island. emergent isolates...
Equine influenza virus (EIV) causes acute respiratory disease in horses and belongs to the A family Orthomyxoviridae, genus Orthomyxovirus. This may have severe financial implications for horse industry owing its highly contagious nature rapid transmission. In Republic of Korea, vaccination against EIV has been practiced with active involvement Korea Racing Authority since 1974. this study, we monitored viral RNA using PCR, as well antibody levels ‘A/equine/South Africa/4/03 (H3N8, clade...
Malignant Sertoli cell tumor was diagnosed in a 5-year-old male Shih Tzu dog.Clinical features of the dog were anorexia, urinary incontinence, constipation, anemia, alopecia, and epistaxis.The also had unilateral cryptorchid testis abdomen.Several abdominal thoracic masses identified on radiography.Grossly, testicular mass markedly enlarged to 8 cm diameter.On cut surface, firm well demarcated milk-white neoplastic areas irregularly separated by white fibrous bands.Histologically, as tubular...
Salmonella (S.) Typhimurium is highly contagious, and its infection may rapidly spread within pig populations of herd.According to the survey (1,191 pigs) from 2003 2012, 155 pigs (13.0%) were diagnosed as salmonellosis in Jeju.Major porcine cases (88.4%) concentrated 4-to 12-week-old weaned pigs, but 6 (3.9%) under 4 weeks old also diagnosed.Based on histopathologic examinations, ulcerative enteritis (63.9%) large intestine and/or paratyphoid nodules formation (57.4%) liver most prevalent...
Porcine salmonellosis is an economically important disease affecting the global pig industry today. Salmonella (S.) Typhimurium highly contagious and may rapidly spread within populations of herd. To investigate prevalence porcine in Jeju, a total 12,885 blood sera 96 farms from 2009 to 2012 were analyzed by microplate agglutination test. Antibodies S. detected all tested Jeju Province, mean seropositive rate individual was 18.8%. The sows (46.7%) 7 times higher than that weaned or growing...
A 12-year-old female small-clawed Asian otter (Anoyx cinereus) with a one-week history of anorexia, chills, and abdominal distension was found dead.Grossly, yellowish-brown turbid fluids accumulated in cavity the otter, yellowish thread-like fibrinous materials were on surface organs.Several variable sized yellowish-white crystalloids scattered medullary space kidneys.Histologically, diffuse serositis (peritonitis) characterized by exudates, thickened serosal capsule swelling mesothelial...
Classical swine fever (CSF) reemerged on CSF-free Jeju Island where vaccination is not practiced by the unintentional injection of a live attenuated vaccine (modified vaccines-low-virulence Miyagi [MLV-LOM]) in 2014. Since provincial authority considering adopting voluntary immunization policy using CSF-E2 subunit to combat LOM-derived CSF endemic, this study aimed evaluate herds.Two trials Bayovac licensed for use South Korea assessed safety and humoral immunity breeding (trial 1) nursery...
The bacterium causing Johne's disease (JD), Mycobacterium avium subspecies paratuberculosis (MAP), is distributed worldwide and causes progressive intestinal disease, also known as paratuberculosis, in domestic exotic ruminants, including cattle. subclinical form of this results weight loss, reduced milk production, lower slaughter value, premature culling, with possible impacts on fertility udder health. Eventually, infection can lead to the clinical that manifests chronic diarrhea,...
In November 2012, a 4-month-old foal with anorexia, neurologic signs ataxia and death was submitted for necropsy to the diagnostic laboratory of Jeju Self-Governing Provincial Veterinary Research Institute. Grossly, yellowish-white fibrinous materials were seen on ventral cerebrum, cerebellum, medulla oblongata cervical spinal cord foal. Histologically, severe fibrino-purulent meningitis characterized by infiltration neutrophils fibrionous exudates bacterial colonies presented in brain stem...
In February 2013, two Korean native goats with circling, dysphagia, sialorrhea, and death were submitted for necropsy to the Jeju Self-Governing Provincial Veterinary Research Institute. Histopathologically, multifocal confluent micro-abscess composed of neutrophils macrophages severe perivascular cuffing observed in pons, medulla oblongata, cerebellum. Isolated bacteria from brain sample Gram-positive coccobacilli confirmed as Listeria (L.) monocytogenes by VITEK PCR analysis. Based on...
Viral respiratory infections are common in horses, notably equine herpesvirus infection and influenza, which primarily initiate secondary bacterial such as strangles caused by Streptococcus equi equi. A decline the production of stallions has been associated with these diseases leading to adverse financial implications. This study investigated antibody responses against horses from Jeju Island a year after vaccination. low level type 1 (EHV-1) (11.36%) antibodies was detected stallions,...
Respiratory diseases among horses cause economic losses in foals and productivity decreases being raised adult horses. In South Korea, fundamental studies of horses’ respiratory those related to disease occurrence are insufficient. Therefore, the aim if current study was use diverse hematological indicators, obtained through tests measurment blood antibody level suffering form diseases, monitor prognosis evaluation. Investigations infection states by bacterial susceptible drugs, resisted...