SynthesisBMC infectious diseases2026
Clinical manifestations and laboratory findings in patients coinfected with dengue virus and SARS-CoV-2: a systematic review.
Synthesis in BMC infectious diseases, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
backgroundDengue Hemorrhagic Fever and Coronavirus disease 2019 (COVID-19) are infectious diseases caused by dengue virus (DENV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). While DENV remains endemic in many tropical regions, SARS-CoV-2 spread globally beginning in 2020. Reports of coinfection have emerged from several countries. This systematic review describes the clinical manifestations and laboratory findings reported in patients coinfected with DENV and SARS-CoV-2.
methodsThis review followed the PRISMA guidelines and collecting data from PubMed for articles published between 2020 and 2025 that discussed DENV and SARS-CoV-2 coinfection. Eligible study designs included theoretical articles, case reports, case series, and cohort studies. Data were synthesized descriptively due to heterogeneity and the absence of comparator groups.
resultsFifteen studies met the inclusion criteria, identifying 65 patients with SARS-CoV-2 and DENV coinfection. Reported symptoms included fever (69%), vomiting (57%), abdominal pain (55%), rash (54%), and shock (51%). Laboratory findings also showed hematological and physiological alterations including hypotension (57.14%), tachypnea (50%), fever (62.5%), neutropenia (33.33%), neutrophilia (50%), lymphopenia (42.86%), and lymphocytosis (28.57%). These percentages represent descriptive counts across heterogeneous case reports and do not reflect prevalence estimates.
conclusionsPatients with DENV and SARS-CoV-2 coinfection exhibit a range of clinical and laboratory abnormalities, but the available evidence-primarily case reports and case series without comparator groups-does not allow conclusions about disease severity or prognosis relative to monoinfection. The findings should therefore be interpreted as descriptive and hypothesis-generating. Careful diagnostic evaluation and clinical monitoring remain essential in suspected coinfection cases. CLINICAL TRIAL NUMBER: Not applicable.
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