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. 2019 Nov 12;75(3):566–570. doi: 10.1093/jac/dkz471

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© The Author(s) 2019. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 1. — Phylogenetic analysis based on the seven loci for NG-STAR. The phylogenetic tree was constructed using MEGA 6 software. Horizontal lines are proportional to phylogenetic distance. Resistance phenotypes are shown as coloured squares for each isolate and each square represents one isolate. Numbers on the tips are N. gonorrhoeae isolate numbers. Bootstrap values of ≥50 are shown at the nodes of the tree branches. Four clusters (clusters A–D) are defined arbitrarily. AZM^R, azithromycin resistance; CRO^RS, reduced susceptibility to ceftriaxone; CFM^RS, reduced susceptibility to cefixime; TET^R, tetracycline resistance; PEN^R, penicillin resistance; CIP^R, ciprofloxacin resistance.