TABLE 1.
Origins of the PCV2 strains used in this study
| Isolate name | Isolation region | Isolation year | Genotype | Genome length (nucleotides) | GenBank accession no. |
|---|---|---|---|---|---|
| LG | Jilin | 2008 | PCV2a | 1,768 | HM038034 |
| CL | Jilin | 2007 | PCV2a | 1,768 | HM038033 |
| YJ | Heilongjiang | 2008 | PCV2b | 1,767 | HM038032 |
| 2206 | Jilin | 2018 | PCV2b | 1,767 | MK347362 |
| 2209 | Liaoning | 2018 | PCV2d | 1,767 | MK347401 |
| 2811 | Shandong | 2017 | PCV2d | 1,767 | MK347389 |