Figure 1. Overall phylogeny of 1,509 Camplylobacter jejuni isolates from Denmark, 2015–2017. Minimum spanning tree was based on core-genome multilocus sequence typing data. Colors indicate specific origin. Each small circle represents single isolates, and pie chart graphics represent multiple isolates with 0 allelic differences. Branch lengths represent the genetic (allelic) distances. The dataset displayed high diversity, and many genetic clusters were detected, in total 104 clusters of clinical isolates (n = 366). Forty-one of these clusters matched food/animal isolates; 34 matches to food/animal isolates were detected for sporadic clinical cases.