Fig 2. Schematic detailing the proposed modifications to the previously described S. stercoralis genotyping scheme.

A graphical representation of the novel Strongyloides haplotypes discovered in this study compared to haplotypes identified in previous reports. The location of sites that were genotypically informative based on the original genotyping method described by Jaletta et al. (2017) and Basso et al. (2018) are indicated, as well as new SNP/indel sites that have been incorporated into the typing scheme based on the results of this study [21, 23]. For hypervariable region I, we introduce two novel types (VIII and X), and assign new haplotype names to published sequences that had not been previously considered in this typing scheme (VII and IX). For hypervariable region IV, we introduce three novel types (E, F, G and I), and assign new haplotype names to published sequences that had not been previously considered in this typing scheme (C, D and H) (see Tables 3 and 4 for details).