Fig 4. Median joining network analysis of P. falciparum isolates collected in (A) Guyana (N = 97) and Suriname (N = 57) and (B) Suriname alone (N = 57).

The genetic relationships among parasites were constructed using seven neutral microsatellite loci, which have been used previously to genetically characterize P. falciparum parasite populations in South America. P. falciparum parasite isolates from Guyana are shown in green while those collected in Suriname are rendered in red. Dotted circles indicate pfhrp2-negative isolates.