Marcus J. RijkenMac Hteld E BoelBruce RussellMallika ImwongMara L. LeimanisAung Pyae PhyoAtis MuehlenbachsNiklas LindegardhRose McGreadyLaurent RéniaGeorges SnounouPratap SinghasivanonFrançois NostenShoklo Malaria Research UnitAgency for Science, Technology and Research, SingaporeMahidol UniversityUniversity of Washington, SeattleNuffield Department of Clinical MedicineInsermUniversite Pierre et Marie Curie2018-05-032018-05-032011-05-09Malaria Journal. Vol.10, (2011)147528752-s2.0-79955564614https://repository.li.mahidol.ac.th/handle/20.500.14594/12049Chloroquine (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. © 2011 Rijken et al; licensee BioMed Central Ltd.Mahidol UniversityImmunology and MicrobiologyMedicineArticleSCOPUS10.1186/1475-2875-10-113