FIG. 3.

Distance neighbor-joining phylogenetic tree based on C. trachomatis amino acid sequences spanning VDI to VDIV for the conjunctival samples. For clarity, only one representative from each genetic variant of the samples is illustrated (in bold type). Values in parentheses indicate the number of samples of that variant. Selected reference isolates stored in our laboratory are also included (underlined). The tree was rooted by using the equivalent MoPn MOMP amino acid sequence region. Numbers at the nodes are bootstrap values (percentages) from 1,000 replicates. The bar corresponds to a graphic distance equivalent to 0.1 amino acid substitution per site.