Table 2. Genetic diversity of 46 Gambian isolates.

Locus	Dn	Ds	dn/ds	Diversity %
atpA	0.0006	0.1009	0.006	2.3
efp	0.0005	0.1059	0.0046	2.2
mutY	0.0098	0.1822	0.0536	4.5
ppa	0.0116	0.042	0.2761	2.1
trpC	0.0187	0.1513	0.1238	4.6
ureI	0.0052	0.0365	0.1428	1.2
yphC	0.0092	0.0924	0.0995	3.4
overall	0.0079	0.1016	0.1009	2.9

d_S and d_n are the average number of synonymous substitutions per synonymous site and non-synonymous substitutions per non-synonymous site, respectively.