Abstract
To characterize the genetic diversity of bovine viral diarrhea viruses (BVDV) circulating in Korea, 11 BVDV isolates were obtained from 467 field samples collected during 2005∼2006 in Korea. All of the BVDV isolates were identified as non-cytopathic (non-cp) BVDV biotypes. The 5′ noncoding region (NCR) genes of the isolates were sequenced and analyzed. In total, ten BVDV isolates were typed as BVDV-1 by comparing the genomic sequences to the 5′ NCR. One isolate (05R169) showed 98.6% nucleotide sequence identity with the BVDV-2 reference strain and was therefore typed as BVDV-2. Our results indicate that BVDV-1 is the main genotype circulating in the cattle population of Korea.
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Table 1.
Virus isolate | Source of sample | Isolated province | Breed | Biotype | Genotype | Accession number |
---|---|---|---|---|---|---|
05D26 | Tissue homogenate | Chungbuk | K∗ | NCP† | 1b | DQ973172 |
05D73 | Tissue homogenate | Gyeonggi | H | NCP | 1b | DQ973173 |
05Q122 | Aborted fetus | Chungnam | H | NCP | 1b | DQ973175 |
05D137 | Aborted fetus | Jeonbuk | K | NCP | 1a | DQ973174 |
05Q174 | Tissue homogenate | Gangwon | H | NCP | 1b | DQ973176 |
05R169 | Blood plasma | Chungnam | H | NCP | 2 | DQ973177 |
05R203 | Blood plasma | Gyeongnam | K | NCP | 1b | DQ973178 |
05R204 | Blood plasma | Gyeongbuk | H | NCP | 1a | DQ973179 |
06R447 | Blood plasma | Gangwon | K | NCP | 1a | DQ973180 |
06Z71 | Blood plasma | Chungnam | K | NCP | 1c | DQ973181 |
06Z127 | Blood plasma | Chungnam | K | NCP | 1c | DQ973182 |