Figure 1From: Differences in selective pressure on dhps and dhfr drug resistant mutations in western KenyaFrequency of dhfr (A) and dhps (B) alleles in the sample set. Bars represent the frequency in "single infections" as detected by genotyping (dhfr n = 145 and dhps n = 166), and the frequency of the alleles in "mixed infections" - single infections plus multiple infection where only one codon was a mixture of wildtype and mutant codons (dhfr n = 205 and dhps n = 217).Back to article page