ArticleIJID regions2025
Dengue virus detection in nasopharyngeal swabs among pediatric cases in Bangladesh.
Article in IJID regions, 2025. 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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Authors and funding
16 authors.
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Abstract
Objectives: Dengue virus (DENV) remains a major public health threat worldwide, with a significant burden in Bangladesh. Despite whole blood being the gold standard for DENV detection, emerging evidence suggests that non-blood specimens, such as nasopharyngeal swabs (NPSs), may offer a less invasive alternative for diagnosis. This study aimed to evaluate the diagnostic performance of NPSs for detecting DENV RNA in pediatric patients in Bangladesh. Methods: We collected 130 paired NPS and blood specimens from children with suspected dengue (aged 1 month to 15 years) at Bangladesh Shishu Hospital and Institute. Viral RNA was extracted from both sample types and subsequently detected using real-time polymerase chain reaction. Results: Of the 130 paired specimens, DENV RNA was detected in 115 blood samples and 104 NPSs. Compared with blood, NPS exhibited a sensitivity of 90.43%, specificity of 100%, and overall accuracy of 91.54%. An analysis of demographic and clinical factors revealed no significant differences between NPS-positive and -negative cases. Conclusions: This study underscores the potential of NPSs as a viable alternative diagnostic specimen for DENV detection, particularly, in settings where blood collection is difficult. Integrating NPS into existing diagnostic and surveillance systems could enhance early detection and outbreak management, ultimately improving patient care and public health response.
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