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Global Health and Tropical Medicine

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In vitro chloroquine resistance for Plasmodium vivax isolates from the Western Brazilian Amazon

Chloroquine (CQ) and primaquine (PQ) are still the drugs of choice to treat Plasmodium vivax malaria in many endemic areas, Brazil included. There is in vivo evidence for the P. vivax resistance to CQ in the Brazilian Amazon, where the increase in the proportion of P. vivax malaria parallels the increase of unusual clinical complications related to this species. In this study, in vitro CQ and mefloquine (MQ)-susceptibility of P. vivax isolates from the Western Brazilian Amazon was tested using the double-site enzyme-linked lactate dehydrogenase immunodetection (DELI) assay.
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About GHTM

GHTM is a R&D Unit that brings together researchers with a track record in Tropical Medicine and International & Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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Funding

UID/04413/2025 - DOI: 10.54499/UID/04413/2025

UID/PRR/04413/2025 - DOI: 10.54499/UID/PRR/04413/2025

UID/PRR2/04413/2025 - DOI: 10.54499/UID/PRR2/04413/2025