Figure 1. Circular phylogenetic tree containing 78 Streptococcus suis isolates from diseased pigs, Italy, 2017–2019. The tree was inferred by using the iTOL interactive user interface (https://itol.embl.de). Shading over tip labels indicates sequence types. The serotypes of each isolate are also shown. The antimicrobial-resistant molecules are annotated by colors and shapes. Scale bar indicates substitutions per site. CLI, clindamycin; ENR, enrofloxacin; FFC, florfenicol; PEN, penicillin; ST, sequence type; TET, tetracycline; TMP/SXT, trimethoprim/sulfamethoxazole.