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Phylogenetic analysis showed that our cases had a greater variation and the existence of two PCV2 groups with at least four subgroups (1A, 1C, 2D, and 2E). Most cases obtained from PMWS-affected herds were in group 1, whereas cases with no clinical signs compatible with PMWS (wasted non-PMWS) were included within group 2. Moreover, four cases from the wasted non-PMWS belonged to PCV2-group 1.
Therefore, our results suggest that PCV2-group 1 is more related to PMWS than group 2.
Joon-Seok Chae and Kyoung-Seong Choi. Genetic diversity of porcine circovirus type 2 from pigs in Republic of Korea. Research in Veterinary Science. 2010. Vol. 88 (2): 333-338.
