Table 1.

Common polymorphic DHFR alleles in P. falciparum

Allele	Location
S108N (0010)	Indonesia, Philippines, Cameroon, Burkina Faso, Bangladesh, Senegal, Sudan
N51I/S108N (1010)	Kenya, Burkina Faso, Cameroon, Sudan, Ethiopia, India
C59R/S108N (0110)	Laos, Indonesia, Thailand, Philippines, Kenya, Cameroon, Bangladesh, Sudan, Iran, India
N51I/C59R/S108N (1110)	Senegal, Sudan, Ethiopia, Kenya, Zambia, Benin, Cameroon, Ivory Coast, Gabon, Guinea, Mali, Uganda, Thailand, Bangladesh
C59R/S108N/I164L (0111)	Bangladesh, Iran, India
N51I/C59R/S108N/ I164L (1111)	Bangladesh, India, Thailand