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. 2015 Aug 5;14:299. doi: 10.1186/s12936-015-0803-3

Fig. 1.

Fig. 1

Frequency of Plasmodium vivax merozoite surface protein 1 (PvMSP-1) strains in the ROK during the previous (1996–2010) and current (2011–2013) study periods. No spot regions indicate only one subtype (S-b, B-1, and R-1) without variation; single open circle S-a subtype, double open circle S-a and S-c subtypes, triple open circle S-b like subtype, single filled circle B-2 subtype, double filled circle R2, R3, and R4 subtypes.