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Control of type O foot-and-mouth disease by vaccination in South Korea, 2014–2015
Jong-Hyeon Park1,*, Dongseob Tark2, Kwang-Nyeong Lee1, Ji-Eun Chun1, Hyang-Sim Lee1, Young-Joon Ko1, Soo-Jeong Kye1, Yong-Joo Kim1, Jae-Ku Oem1, Soyoon Ryoo1, Sung-Bin Lim1, Seo-Yong Lee1, Joo-Hyung Choi1, Mi-Kyeong Ko1, Su-Hwa You1, Myoung-Heon Lee1, Byounghan Kim1
1Animal and Plant Quarantine Agency, 177 Hyeoksin 8-ro, Gimcheon City, Gyeongsangbuk-do, 39660, Republic of Korea
2Korea Zoonosis Research Institute, Chonbuk National University, 820-120 Hana-ro, Iksan Si, Jeollabuk-do, Republic of Korea
Correspondence to: Tel: +82-54-912-0906; E-mail: parkjhvet@korea.kr
Received: August 3, 2017; Revised: November 6, 2017; Accepted: November 16, 2017; Published online: November 23, 2017.
On December 3, 2014, a type O foot-and-mouth disease (FMD) outbreak occurred in South Korea. Although vaccinations were administered, cases of FMD increased steadily for five months and reached 185 cases by April 2015. Most of the affected animals were pigs, which are vulnerable to vaccinations. The FMD virus belonged to the South-East Asia (SEA) topotype that had been observed three times in Korea from April 2010 to July 2014. However, the virus in December 2014 had a unique difference in a partial deletion of the 5’ noncoding region, which had not been seen in the previous SEA topotype isolates that were identified in Korea. Therefore, we inferred that this outbreak was the introduction of a new strain and that South Korea was affected by genetically similar strains of the FMD virus similar to those from neighboring countries.
Keywords: foot-and-mouth disease, vaccination, control, Korea

© 2017 The Korean Society of Veterinary Science.