Fig. 5
From: Genetic diversity among Plasmodium vivax isolates along the Thai–Myanmar border of Thailand
Distribution of Pvmsp3α 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 C. Chi square test did not detect any significant difference in allelic variant frequencies between the two collection periods (X 2 = 0.701, degrees of freedom (df) = 2, P = 0.724)