Fig. 3From: Assessment of copy number variation in genes related to drug resistance in Plasmodium vivax and Plasmodium falciparum isolates from the Brazilian Amazon and a systematic review of the literatureGlobal pattern of mdr1 copy number variation in P. vivax isolates. The frequency of isolates carrying one or multiple copies of pvmdr1 is indicated by green and red pie charts, respectively. The size of the pie charts is proportional to the number of isolates analysed in each studyBack to article page