To determine the genetic relationship of PBoV1-H18 and PBoV2-A6 with recently described porcine bocaciruses and bocaviruses from other host species, both nucleotide and amino acid alignments were generated and used for phylogenetic analyses. When the whole genomes were considered porcine bocaviruses as a group (except for the V6/V7 variants with only NP1 sequences available), were most closely related to the canine bocavirus CnMV (Figure 2A ). Phylogenetic analyses of the 3 ORFs -NS1, NP1 and VP1/VP2 -were also performed ( Figure 2B-G) . In all three regions, PBoV1-H18 was most closely related to the Chinese PBoV1 and PBoV2 recently reported by Cheng et al [28] . PBoV2-A6 was closely related in NP1 to the first reported partial porcine bocavirus sequence PBo-likeV from Sweden, the only region available for comparison (Fig. 2C, F ) [27] . Table 2 numerically shows the protein similarities between PBoV1-H18 and PBoV2-A6 and other porcine and non-porcine bocaviruses.