The Bayesian phylogenetic tree was reconstructed through MrBayes14using a general-time reversible (GTR) style of nucleotide substitution, a proportion of invariant sites, and gamma distributed rates among sites. sex with guys (MSM) of whom 67.8% (n=61) were NDs. Among heterosexuals (n=44), men had been predominant (79.5%,n=35) and 77.3% (n=34) were NDs. Continue Reading