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Phylogeny and antimicrobial susceptibility of Neisseria gonorrhoeae isolates from England, 2013–2016. Maximum-likelihood phylogeny with recombination events removed of all N. gonorrhoeae isolates annotated with gender and sexual orientation, antimicrobial susceptibility phenotype, and penA genotype. Asterisks represent location in tree of isolates with high-level azithromycin resistance (MIC >256 mg/L). Heterosexual men were those who reported sex with women exclusively.
