• Journal of Veterinary Science
• /
• v.23 no.2
• /
• pp.20.1-20.8
• /
• 2022

Background: Emergent and re-emergent canine tick-borne infections are attracting increasing attention worldwide. The rise in pet ownership and the close relationship between dogs and their owners are the most concerning factors because dogs may act as competent reservoirs for human tick-transmitted infectious agents. Objectives: This study contributes to the epidemiological surveillance of canine tick-transmitted infections with zoonotic risk in the Republic of Korea (ROK) by investigating the seroprevalence of the pathogens, Anaplasma spp., Borrelia burgdorferi, and Ehrlichia canis. Methods: Four hundred and thirty whole blood samples from domestic dogs were collected in seven metropolitan cities and nine provinces in the ROK and tested using SensPERT Ab test kits (VetAll Laboratories^®) to detect seroreactive animals. Results: The seroprevalence rates identified were 9.8% (42/430) for Anaplasma spp., 2.8% (12/430) for B. burgdorferi, and 1.4% (6/430) for E. canis. The risk factors evaluated in this study that could be associated with the development of a humoral immune response, such as sex, age, and history of tick exposure, were similar. There was only one exception for dogs seroreactive to Anaplasma spp., where the risk factor "tick exposure" was statistically significant (p = 0.047). Conclusions: This serological survey exhibited the widespread presence of Anaplasma spp., B. burgdorferi, and E. canis throughout the ROK. Hence, dogs may play a key role as the sentinel animals of multiple zoonotic infectious agents in the country.

• Journal of Veterinary Science
• /
• v.24 no.3
• /
• pp.42.1-42.6
• /
• 2023

Lumpy skin disease (LSD) is one of the most important emerging transboundary diseases. Recently, LSD has emerged in many countries in the northern hemisphere. The LSD virus has a huge genome and is highly resistant to environmental conditions. The virus is also host-specific and large ruminants, such as cattle and domestic water buffalo, are particularly susceptible. In addition, wild ruminants can serve as potential reservoirs for spreading the LSD virus. The emergence might be related to climate change in various regions because LSD is an arthropod-borne infectious disease. This disease causes enormous economic losses, such as leather damage, decreased milk production, abortion, and death in infected ruminants. The economic importance of LSD in the bovine industry has forced countries to develop and implement control strategies against the disease. With the recent global spread and the economic impact, LSD will be discussed intensively. In addition, effective preventive measures are suggested based on the presence or absence of LSD outbreaks.

• Parasites, Hosts and Diseases
• /
• v.60 no.1
• /
• pp.65-71
• /
• 2022

Severe fever with thrombocytopenia syndrome virus (SFTSV) is a zoonotic, tick-borne RNA virus of the genus Bandavirus (Family Phenuiviridae), mainly reported in China, Japan, and the Republic of Korea (Korea). For the purpose of this study, a total of 3,898 adult and nymphal ticks of species Haemaphysalis longicornis (94.2%), Haemaphysalis flava (5.0%), Ixodes nipponensis (0.8%), and 1 specimen of Ixodes ovatus, were collected from the Deogyusan National Park, Korea, between April 2016 and June 2018. A single-step reverse transcriptase-nested PCR was performed, targeting the S segment of the SFTSV RNA. Total infection rate (IR) of SFTSV in individual ticks was found to be 6.0%. Based on developmental stages, IR was 5.3% in adults and 6.0% in nymphs. The S segment sequences obtained from PCR were divided into 17 haplotypes. All haplotypes were phylogenetically clustered into clades B-2 and B-3, with 92.7% sequences in B-2 and 7.3% in B-3. These observations indicate that the Korean SFTSV strains were closer to the Japanese than the Chinese strains. Further epidemiological studies are necessary to better understand the characteristics of the Korean SFTSV and its transmission cycle in the ecosystem.

• Journal of Microbiology and Biotechnology
• /
• v.22 no.8
• /
• pp.1170-1176
• /
• 2012

In this study, we aimed to evaluate the effect of ${\alpha}$-cyperone on S. aureus. We used a hemolysin test to examine the hemolytic activity in supernatants of S. aureus cultured with increasing concentrations of ${\alpha}$-cyperone. In addition, we evaluated the production of ${\alpha}$-hemolysin (Hla) by Western blotting. Real-time RT-PCR was performed to test the expression of hla (the gene encoding Hla) and agr (accessory gene regulator). Furthermore, we investigated the protective effect of ${\alpha}$-cyperone on Hla-induced injury of A549 lung cells by live/dead and cytotoxicity assays. We showed that in the presence of subinhibitory concentrations of ${\alpha}$-cyperone, Hla production was markedly inhibited. Moreover, ${\alpha}$-cyperone protected lung cells from Hla-induced injury. These findings indicate that ${\alpha}$-cyperone is a promising inhibitor of Hla production by S. aureus and protects lung cells from this bacterium. Thus, ${\alpha}$-cyperone may provide the basis for a new strategy to combat S. aureus pneumonia.

• Journal of Veterinary Science
• /
• v.22 no.1
• /
• pp.4.1-4.13
• /
• 2021

Background: Microsporum canis is a zoonotic disease that can cause dermatophytosis in animals and humans. Objectives: In clinical practice, ketoconazole (KTZ) and other imidazole drugs are commonly used to treat M. canis infection, but its molecular mechanism is not completely understood. The antifungal mechanism of KTZ needs to be studied in detail. Methods: In this study, one strain of fungi was isolated from a canine suffering with clinical dermatosis and confirmed as M. canis by morphological observation and sequencing analysis. The clinically isolated M. canis was treated with KTZ and transcriptome sequencing was performed to identify differentially expressed genes in M. canis exposed to KTZ compared with those unexposed thereto. Results: At half-inhibitory concentration (½MIC), compared with the control group, 453 genes were significantly up-regulated and 326 genes were significantly down-regulated (p < 0.05). Quantitative reverse transcription polymerase chain reaction analysis verified the transcriptome results of RNA sequencing. Gene ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes enrichment analysis revealed that the 3 pathways of RNA polymerase, steroid biosynthesis, and ribosome biogenesis in eukaryotes are closely related to the antifungal mechanism of KTZ. Conclusions: The results indicated that KTZ may change cell membrane permeability, destroy the cell wall, and inhibit mitosis and transcriptional regulation through CYP51, SQL, ERG6, ATM, ABCB1, SC, KER33, RPA1, and RNP genes in the 3 pathways. This study provides a new theoretical basis for the effective control of M. canis infection and the effect of KTZ on fungi.

• Journal of the korean veterinary medical association
• /
• v.36 no.5
• /
• pp.413-420
• /
• 2000

• YAKHAK HOEJI
• /
• v.58 no.2
• /
• pp.91-98
• /
• 2014

Pharmacists must be aware of veterinary drugs to prevent abuse and misuse of the drugs, and to ensure the safety of livestock under the veterinarian prescription system. In this study, the awareness of animal pharmacies was surveyed in order to find out the role of animal pharmacies and the necessity of veterinary drug education for pharmacists. Surveys were conducted by 187 animal owners and 115 community pharmacists. 80% of the animal owners had purchased drugs for their animals. 63% of respondents were not aware of the existence of animal pharmacies. The best selling drug class for animals was antiparasitic. The most common drug that respondents wanted to buy in animal pharmacies was also antiparasitic. About 80% of respondents answered affirmatively on the question of whether they would buy the drugs from animal pharmacies regardless of the location of the pharmacies. Most community pharmacists were aware of the existence of animal pharmacies. 70% of pharmacists had considered trading in veterinary drugs. 41% of respondents answered that they did not trade in them because they were not familiar with veterinary drugs. 80% of respondents answered that what they needed most was education in order to increase the number of animal pharmacies. Pharmacies for animal will expand the choice of animal owners, and enable pharmacists to improve their specialty as well as to diversify the pharmacy services. To achieve this, promotion of animal pharmacies and education about veterinary drugs for pharmacists would be needed in regular education system.

• Journal of Veterinary Clinics
• /
• v.37 no.1
• /
• pp.15-22
• /
• 2020

This study investigated the effectiveness of radiation safety rules in animal hospital and the awareness and behavior of veterinary radiation workers. With the questionnaires, the data was collected from randomly selected veterinarians in animal hospitals and animal medical imaging centers. Collected data were about radiation device, shielding device, regulations, safety management, education, knowledge, behavior and awareness. Frequency, correlation and multiple regression analysis were performed. The medical devices related with radiation in animal hospital were X-ray (59%), CT (15%), fluoroscopy (12%), mobile X-ray (12%) and others (2%). The number of people using radiation shielding device is high. The answers were low on knowing radiation related regulation and receiving radiation protection education. The group with higher knowledge and awareness shows positive correlation with safety behavior. The increase of use of the radiation related medical devices in veterinary hospital causes the increase of radiation exposure risk. This study suggests that radiation safety management system and policies need to be developed to protect radiation workers and give them correct information and consciousness.

• Journal of the korean veterinary medical association
• /
• v.47 no.9
• /
• pp.836-841
• /
• 2011

지난 5월 프랑스 리옹 수의과대학에서 수의학 교육에 대한 국제학술대회 (World Conference on Veterinary Education)가 개최되었다. 2011년은 세계 최초 수의학 교육기관인 리옹 수의과대학 설립 250주년을 기념하는 해로 그 의미를 더하는 자리였다. OIE(Office International des Epizooties)와 공동으로 개최된 이번 학술대회에서는 OIE Day 1 Competencies와 세계 각 수의과대학의 커리큘럼 개선 방안 등이 토론되었다. 모든 발표문을 요약할 수는 없으나, 본고에서 수의학 교육의 중요한 흐름 몇가지를 정리해 보고자 한다.

• Journal of the korean veterinary medical association
• /
• v.36 no.4
• /
• pp.306-317
• /
• 2000