Bold-faced underlined text shows number of isolates of each host in the specific BAPS cluster. Admixture was mainly found in clusters 1 and 4 for a total of nine STs (12.2%) including a total of 18 isolates (7.2%). Mainly novel STs in the ST-21 complex (two STs), ST-48 complex (one ST), ST-658 complex (one ST), ST-1962 and ST-1970 were found to be admixed. However, also ST-618 (ST-61 CC), ST-945 (ST-1287 CC) and ST-58 (unassigned) were significantly admixed. Bovine isolates were found to be associated

with admixture (p = 0.05). BAPS clusters 4 and 5 were associated with the bovine isolates (Table 2), BAPS cluster 1 was associated with Selleck GSK3235025 the poultry isolates and BAPS clusters 2 and 3 were not associated with any host. Bovine isolates were found in selleck screening library bovine-associated clusters in 71.7% of cases. Of the poultry isolates 72.7% were found in the poultry-associated cluster. Human isolates

were found in the bovine-associated BAPS cluster 4 in 44.3% of the cases and in 45.4% of the cases found in the poultry-associated BAPS cluster 1. The NJ tree shown in Figure 1 illustrates the molecular variation within and between the clusters estimated by BAPS from a phylogenetic perspective. eBURST analysis yielded seven groups containing two (smallest group) to 12 (biggest group) STs and 34 singletons. Table 3 shows the degree of similarity between the eBURST groups and BAPS populations. The biggest BAPS clusters (1 and 4) were made up of several eBURST groups, while BAPS cluster 2 did not have an equivalent eBURST group. Figure 1 Neighbour-joining tree illustrating BAPS clusters Dapagliflozin from a phylogenetic perspective. BAPS cluster 1: Red; BAPS cluster 2: Green; BAPS cluster 3: Blue; BAPS cluster 4: Yellow; BAPS cluster 5: Purple. Table 3 Number

of STs of Campylobacter jejuni assigned to both a BAPS population and an eBURST group BAPS populations eBURST groups   1 2 3 4 5 6 7 1 1 10     3     2               3             2 4 11   1 4   3   5     5         Discussion Our study revealed a high diversity of MLSTs among 102 bovine C. jejuni isolates obtained from three major Finnish slaughterhouses, representing 81 farms, in 2003. A total of 50 STs (nine CCs) were observed, nearly half of which were novel, emerging mostly from new combinations of known alleles and in two cases from new alleles carrying a one-nucleotide difference from alleles commonly found in cattle (pgm allele 2, tkt allele 1 and uncA allele 17).