Fig. 4
From: Genetic diversity among Plasmodium vivax isolates along the Thai–Myanmar border of Thailand
Distribution of Pvmsp1F3 allelic variants in P. vivax isolates collected along the Thai–Myanmar border during two periods. Distribution in 2003–2004 (black bars, n1 = number of isolates) and 2012–2013 (white bars, n2 = number of isolates) were shown. The allelic variants were designated A to G. Significant differences in allelic variant frequency between the two collection periods are indicated by asterisk (Fisher’s exact test, P = 0.018)