TABLE 1.

Percentages of mutations at specific codons within malaria drug resistance genes

Location (na)	% of isolates with mutations at codon for gene groupb:
	DHFR				DHPS					MDR					CRT
	51	59	108	164	436	437	540	581	613	86	184	1034	1042	1246	76
Entosopia (31)	94	100	100	0	3	94	81	0	0	90	100	100	100	100	100
Magadi (22)	91	100	77	0	0	96	73	0	0	86	100	100	100	100	100
Kericho (38)	92	100	97	0	0	74	66	0	0	68	100	95	100	95	92
Kisumu (34)	97	100	91	0	27	41	65	0	0	35	100	100	97	35	82

^an, number of samples tested.

^bDHFR, dihydrofolate reductase; DHPS, dihydropteroate synthase; MDR, multidrug resistance gene; CRT, chloroquine resistance transporter.