Table 2. Mean pairwise divergence (p-distance) of mitochondrial lineages within and between dracunculid parasites.

D. medinensis–grouped by country of origin
	Chad	Ethiopia	Mali	South Sudan
Chad	0.005
Ethiopia	0.005	0.002
Mali	0.005	0.004	0.003
South Sudan	0.005	0.003	0.005	0.001
D. medinensis–within Chad, grouped by host species
	Chad Human	Chad Dog	Chad Cat
Chad Human	0.005
Chad Dog	0.005	0.005
Chad Cat	0.005	0.004	0.003
Divergence within and among Dracunculus spp. (cox1 only)
	D. medinensis	D. insignis	D. lutrae
D. medinensis	0.005
D. insignis	0.09	0.001
D. lutrae	0.11	0.09	0.004

Uncorrected pairwise proportion of nucleotide differences (p-distance) estimated in MEGA7 (Kumar et al. 2016) with 1000 bootstrap replicates. Estimates within and among D. medinensis alone used 3015 bp of mitochondrial sequence (concatenated cytB, cox3, nd3, and nd5 genes). Estimates within and among Dracunculus spp. use 496 bp of cox1 sequence (D. insignis and D. lutrae sequences from [10]).

Diagonal, mean within-group p-distance; below diagonal, mean between-group p-distance