Phylogenetic tree of Mycoplasmagenitalium-positive samples using dual locus sequence typing. Phylogenetic tree of Mycoplasmagenitalium-positive samples using dual locus sequence typing. Red denotes samples collected pre-MDA and blue denotes samples collected post-MDA; bootstrap value between MG1 and MG2=100%. Scale: mean number of nucleotide substitutions per site. MDA; mass drug administration. Mark Andrew Harrison et al. Sex Transm Infect doi:10.1136/sextrans-2018-053938 ©2019 by BMJ Publishing Group Ltd