Fig. 1From: Return of chloroquine sensitivity to Africa? Surveillance of African Plasmodium falciparum chloroquine resistance through malaria imported to ChinaGeographical distribution of pfcrt haplotypes in imported P. falciparum isolates based on amino acid site 76. Circle sizes represent the number of samples from each site. Pie charts presenting the frequencies of the pfcrt haplotypes found in the imported P. falciparum isolates. Wild type = K76; mutant type = 76T; mixed type = K76 + T76Back to article page