Figure 1From: Streptococcus ruminantium-associated sheep mastitis outbreak detected in Italy is distinct from bovine isolatesPairwise single nucleotide variant (SNV) network. Isolates are shown as nodes, coloured by year of isolation. Transmission was set at ≤ 15 SNVs (solid lines), with more distantly related isolates found with ≤ 53 SNVs (dotted line). Isolates from previous years with ≥ 1000 pairwise SNVs have blank lines.Back to article page