Prevalence of haplotypes of pfcrt codons 72 to 76 and pfmdr1 codons 84, 184, 1034, 1042, and 1246. The prevalence of each haplotype was calculated with n/nt, where n is the number of positive samples and nt is the number of successfully sequenced samples. The pfmdr1 (codons 86, 184, 1034, 1042, and 1246) mixed haplotypes NY/FSND (7 samples), N/YYSND (8 samples), and N/YY/FSND (8 samples) were removed from the analyses.