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Table 2 Pfcrt haplotypes and frequency of Pfmdr1 codons in Nigerian children

From: Persistence of chloroquine-resistant haplotypes of Plasmodium falciparum in children with uncomplicated Malaria in Lagos, Nigeria, four years after change of chloroquine as first-line antimalarial medicine

Gene n Genotype/haplotype Prevalence (%)
Pfcrt 119 CVIET (mutant type) 109 (91.6)
Amino acids (72–76)   CVMNK (wild type) 5 (4.2)
  CVMNK/CVIET (mixed) 5 (4.2)
Pfmdr1    
Amino acids 86, 184, 1034, 1042 and 1246 74 86Y (mutant type) 46 (62.2)
   86 N (wild type) 14 (18.9)
   86 N + 86Y (mixed) 14 (18.9)
  71 184 F (mutant type) 49 (69)
   184Y (wild type) 11 (15.5)
   184 F + 184Y (mixed) 11 (15.5)
  81 1034C (mutant type) 0(0)
   1034S (wild type) 81(100)
  81 1042D (mutant type) 0(0)
   1042 N (wild type) 81(100)
  29 1246S (mutant type) 0(0)
   1246D (wild type) 29(100)