Isolation and Genetic Characterization of African Swine Fever Virus from Domestic Pig Farms in South Korea, 2019
Hyun-Joo Kim | Ki-Hyun Cho | Ji-Hyoung Ryu | Min-Kyung Jang | Ha-Gyeong Chae | Ji-Da Choi | Jin-Ju Nah | Yong-Joo Kim | Hae-Eun Kang
On 17 September 2019, the first outbreak of African swine fever in a pig farm was confirmed in South Korea. By 9 October, 14 outbreaks of ASF in domestic pigs had been diagnosed in 4 cities/counties. We isolated viruses from all infected farms and performed genetic characterization. The phylogenetic analysis showed that all of fourteen ASFV isolates in South Korea belong to genotype II and serogroup 8. Additionally, all isolates had an intergenic region (IGR) II variant with additional tandem repeat sequences (TRSs) between the I73R and I329L genes and showed characteristics of central variable region (CVR) 1 of the B602L gene and IGR 1 of MGF 505 9R/10R genes. These are identical to the genetic characteristics of some European isolates and Chinese isolates.
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