• Title/Summary/Keyword: foot and mouth disease

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Pathogenesis, Dianosis, and Prophylactic Vaccine Development for Foot-and-Mouth Disease (구제역의 병리기전 및 진단, 예방백신 개발)

  • Moon, Sun-Hwa;Yang, Joo-Sung
    • Applied Biological Chemistry
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    • v.48 no.4
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    • pp.301-310
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    • 2005
  • Foot-and-mouth disease (FMD) is a highly contagious disease of mammals and has a great potential for causing severe economic loss in susceptible cloven-hoofed animals, such as cattle, pigs, sheep, goats and buffalo. FMDV, a member of the Aphthovirus genus in the Picornaviridae family, is a non-enveloped icosahedral virus that contains a positive sense RNA of about 8.2 kb in size. The genome carries one open reading frame consisting of 3 regions: capsid protein coding region P1, replication related protein coding region P2, and RNA-dependent RNA polymerase coding region P3. FMDV infects pharynx epithelial cell in the respiratory tract and viral replication is active in lung epithelial cell. Morbidity is extremely high. A FMD outbreak in Korea in 2002 caused severe economic loss. Although intense research is undergoing to develop appropriate drugs to treat FMDV infection, there is no specific therapeutic for controlling FMDV infection. Moreover, there is an increasing demand for the development of vaccine strategies against FMDV infection in many countries. In this report, more effective prevention strategies against FMDV infection were reviewed.

Comprehensive Measures for Foot and Mouth Disease(FMD) (구제역(口蹄疫) 종합대책)

  • Rhee, Seong-Kap;Park, Yong-Bae
    • Journal of the Korean Professional Engineers Association
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    • v.44 no.2
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    • pp.34-38
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    • 2011
  • Foot and mouth disease (FMD) is a highly contagions disease of cloven-hoofed animals and occurs in many non-European countries, in particular in huge parts of Asia including Turkey, in most countries of Africa and in parts of South America. The extreme contagiousness of the disease requires comprehensive to control an outbreak, causing high economic losses. The outbreak of FMD, which affects livestock including cattle, swine,sheep,goats,deer and other animals as a highly communicable disease that affects. The agency issued a statement noting that FMD disease does not spread to humans. The disease and meat from infected animals are news reports that more than 3.400.000 livestock have been ordered slaughtered so far across the country.

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Analysis of protective genotype of foot-and-mouth disease (FMD) Asia1 vaccine (구제역 Asia1 백신의 방어 유전형 분석)

  • Lee, Yeo-Joo;Chu, Jia-Qi;Lee, Seo-Yong;Kim, Su-Mi;Lee, Kwang-Nyeong;Ko, Young-Joon;Lee, Hyang-Sim;Cho, In-Soo;Nam, Seok-Hyun;Park, Jong-Hyeon
    • Korean Journal of Veterinary Service
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    • v.34 no.2
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    • pp.103-109
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    • 2011
  • Asia1/Shamir that has been recommended by World Reference Laboratory for foot-and-mouth disease (FMD) is used as a vaccine strain, and is being prepared in many countries including Korea. Although it is assumed that vaccine strain Asia1/Shamir has a wide antigenicity, sufficient molecular biological analysis has not been accomplished yet. Complete genome sequence analysis showed that the region with the most severe variations was 1D region of structural protein-coding sequence; particularly amino acid 141~157 residues in 1D region RGD sites for binding to susceptible cells. In addition, five amino acids in 1D region were identified as characteristic sites that are different from other known Asia1 viruses. Asia1/Shamir strain was shown to be genetically similar to group VI that had occurred in the Middle East, but showed low level of genetic similarity to the group V viruses that had occurred in the Southeast Asia and China. It is considered that, if these viruses, group I and II including group V are introduced into Korea, care would be paid in case of inoculating the vaccine strain Shamir available in Korea.

Improvement Plan for the Prevention and Biosecurity of Animal Disease (가축전염병 예방 및 방역을 위한 개선방안)

  • Park, Jae Hong
    • Journal of Korean Society on Water Environment
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    • v.27 no.3
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    • pp.371-376
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    • 2011
  • If animal disease, i.e., livestock foot-and-mouth disease, avian influenza, brings out, animals have to be disposed to prevent the virus spreading. Mainly, animals have been disposed by carcass disposal. However, If not done properly, carcass disposal can lead to environmental problems, i.e., soil and ground water pollution, etc. Therefore, various disposal methods, i.e., rendering, cremation, etc., have to be considered with burial. Also, various supplement policies are needed to prevent the animal disease. The purpose of this study was to find effective solutions for the prevention and biosecurity of animal disease.

Synergistic effect of ribavirin and vaccine for protection during early infection stage of foot-and-mouth disease

  • Choi, Joo-Hyung;Jeong, Kwiwan;Kim, Su-Mi;Ko, Mi-Kyeong;You, Su-Hwa;Lyoo, Young S.;Kim, Byounghan;Ku, Jin-Mo;Park, Jong-Hyeon
    • Journal of Veterinary Science
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    • v.19 no.6
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    • pp.788-797
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    • 2018
  • In many countries, vaccines are used for the prevention of foot-and-mouth disease (FMD). However, because there is no protection against FMD immediately after vaccination, research and development on antiviral agents is being conducted to induce protection until immunological competence is produced. This study tested whether well-known chemicals used as RNA virus treatment agents had inhibitory effects on FMD viruses (FMDVs) and demonstrated that ribavirin showed antiviral effects against FMDV in vitro/in vivo. In addition, it was observed that combining the administration of the antiviral agents orally and complementary therapy with vaccines synergistically enhanced antiviral activity and preserved the survival rate and body weight in the experimental animals. Antiviral agents mixed with an adjuvant were inoculated intramuscularly along with the vaccines, thereby inhibiting virus replication after injection and verifying that it was possible to induce early protection against viral infection prior to immunity being achieved through the vaccine. Finally, pigs treated with antiviral agents and vaccines showed no clinical signs and had low virus excretion. Based on these results, it is expected that this combined approach could be a therapeutic and preventive treatment for early protection against FMD.

Blood parameter changes in Korean traditional calves and pigs after foot-and-mouth disease vaccination

  • Cha, Chun-Nam;Park, Eun-Kee;Yoo, Chang-Yeul;Kim, Suk;Yun, Young Won;Lee, Hu-Jang
    • Korean Journal of Veterinary Research
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    • v.57 no.1
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    • pp.43-45
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    • 2017
  • This study investigated changes in certain blood parameters in calves and pigs after foot-and-mouth disease (FMD) vaccination. In this study, five calves and five pigs were selected from groups of 10 calves and pigs, respectively, and were vaccinated with an FMD vaccine. The remaining animals formed two non-treatment control groups. Blood samples were collected from all animals on the 1st, 3rd, 5th, and 7th days post-vaccination. In the FMD-vaccinated calves and pigs on day 7 post-vaccination, white blood cell counts, blood urea nitrogen levels, and alanine aminotransferase and aspartate aminotransferase activities were higher than those in the respective controls. The present data suggested that the certain hemato-biochemical parameters on cattle and pigs were meaningfully changed between before and after FMD vaccination.

Costs analysis of carcass burial site construction: Focused on the foot and mouth disease 2011, South Korea

  • Kim, Mi Hyung;Ko, Chang-Ryong;Kim, Geonha
    • Environmental Engineering Research
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    • v.20 no.4
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    • pp.356-362
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    • 2015
  • Many burial sites were constructed in a short time to prevent the rapid spread of foot and mouth disease in infected livestock carcasses in Korea. More than 4,700 carcass burial sites were constructed in 2011. Approximately seven million poultry and 3.5 million livestock, including cattle and swine, were buried on farmland. Some burial sites were suspected of leachate leakage and were excavated and carcasses redisposed in a bioaugmentation process. This study performed interviews in order to understand the economic issues related to carcass burial and redisposal. The internal data from local government and the assumption data from online sites were analyzed to evaluate the costs; the focus was on burial site construction. The results showed that the local government paid $4.7 and $10.9 per carcass for traditional burial and redisposal. The comparable costs shown online were $4.5. This study found that the standard operating procedures should be carried out to reduce environmental impact and avoid additional costs. We estimated that the cost could be reduced by the advance preparations of materials against the emergency situations such as catastrophe of epidemics. In addition, the innovative technology for the stabilization of carcasses should be established through a future study.

Experimental infection in guinea pig with foot and mouth disease virus

  • Abdul-Ahad;Rahman, Md-Siddiqur;Rahman, Md-Mostafizur;Baek, Byeong-Kirl;Lee, John-Hwa
    • Korean Journal of Veterinary Service
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    • v.26 no.1
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    • pp.73-80
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    • 2003
  • In order to obtain information on murine model for foot and mouth disease virus(FMDV) type Asia 1, we studied whether guinea pig was a suitable model for studying FMDV. Apparently healthy 3 months old albino guinea pigs and unweaned 3 days old Swiss albino mice were used for this study. Total of 8 guinea pigs were divided into the infected(n=5) and control(n=3) groups. The incubation period of FMDV in the guinea pigs were roughly 2 days and the viremia persisted for 3 days in the guinea pigs. Mice inoculated with the plasma from control guinea pigs did not show any sign of viremia. The plasma were titrated by virus neutralization test using suckling mice as an indicator host. The mean virus neutralizing antibody titers of infected guinea pig at 3 DPI, 4 DPI and 5 DPI were log$\_$10/2.16, log$\_$10/ 3.39 and log$\_$10/ 3.44, respectively whereas there was no neutralizing antibody titer in control group. The difference between the mortality pattern and mean virus neutralizing antibody titer of infected and that of control group at day 3, 4, 5 were statistically significant(p<0.0l).

Acute pancreatitis in hand, foot and mouth disease caused by Coxsackievirus A16: case report

  • Park, Byungsung;Kwon, Hyuckjin;Lee, Kwanseop;Kang, Minjae
    • Clinical and Experimental Pediatrics
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    • v.60 no.10
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    • pp.333-336
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    • 2017
  • Coxsackievirus A16 (CA16), which primarily causes hand, foot, and mouth disease (HFMD), is associated with complications, such as encephalitis, acute flaccid paralysis, myocarditis, pericarditis, and shock. However, no case of pancreatitis associated with CA16 has been reported in children. We report a case of CA16-associated acute pancreatitis in a 3-year-old girl with HFMD. She was admitted because of poor oral intake and high fever for 1 day. Maculopapular rashes on both hands and feet and multiple vesicles on the soft palate were observed on physical examination. She was treated conservatively with intravenous fluids. On the fourth hospital day, she had severe abdominal pain and vomiting. The serum levels of amylase and lipase were remarkably elevated (amylase, 1,902 IU/L; reference range, 28-100 IU/L; lipase, >1,500 IU/L; reference range, 13-60 IU/L), and ultrasonography showed diffuse swelling of the pancreas with a small amount of ascites. The real-time reverse transcription polymerase chain reaction result from a stool sample was positive for CA16. CA16 can cause acute pancreatitis, and should be considered in the differential diagnosis of abdominal pain in children with HFMD.