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Example of one gonorrhea patient (§) found to be infected with three N. gonorrhoeae strains (tonsil, rectum, and urethra) at one visit to the STI Clinic in Amsterdam, The Netherlands. The three isolates belong to clusters A7, G3, and U2; all isolates of these clusters are shown in one phylogenetic tree. See the legend of Fig. 1 for abbreviations.
