Case report highlights the co-occurrence of dengue and malaria, suggesting dengue may trigger P. vivax relapse.
Dengue and malaria are common vector-borne tropical diseases and are associated with high morbidity and mortality. Co-infection of dengue and malaria is underestimated due to parsimonious diagnostic approaches once the diagnosis of either is made, particularly using point-of-care assays, such as rapid diagnostic tests (RDTs). We present a case of dengue and Plasmodium vivax co-infection in a returned traveler from an endemic region, in whom the epidemiology and clinical course are highly suggestive of dengue triggering a P. vivax relapse. The literature on the co-occurrence of dengue and malaria in travelers is reviewed, as is the state of knowledge surrounding dengue as a precipitant to relapsing malaria.
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Sridhar et al. (2025) studied this question.
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