Rijken, Marcus J.Boel, Machteld E.Russell, BruceMallika Imwongมัลลิกา อิ่มวงศ์Leimanis, Mara L.Phyo, Aung PyaeMuehlenbachs, AtisLindegardh, NiklasMcGready, RoseRénia, LaurentSnounou, GeorgesPratap Singhasivanonประตาป สิงหศิวานนท์Nosten, FrançoisMahidol University. Faculty of Tropical Medicine.Department of Molecular Tropical Medicine and Genetics2013-03-072016-09-262013-03-072016-09-2620112013-03-072011-05-05Rijken MJ, Boel ME, Russell B, Imwong M, Leimanis ML, Phyo AP, et al. Chloroquine resistant vivax malaria in a pregnant woman on the western border of Thailand. Malar J. 2011 May 5;10:113.1475-2875 (electronic)https://repository.li.mahidol.ac.th/handle/20.500.14594/717Chloroquine (CQ) resistant vivax malaria is spreading. In this case, Plasmodium vivax infections during pregnancy and in the postpartum period were not satisfactorily cleared by CQ, despite adequate drug concentrations. A growth restricted infant was delivered. Poor susceptibility to CQ was confirmed in-vitro and molecular genotyping was strongly suggestive of true recrudescence of P. vivax. This is the first clinically and laboratory confirmed case of two high-grade CQ resistant vivax parasite strains from Thailand.engMahidol UniversityAntimalarialsChloroquineDNA, protozoanDrug resistanceMalaria, vivaxPlasmodium vivaxPregnancy complications, infectiousOpen Access articleArticleBioMed Central