ArticleJournal of clinical virology : the official publication of the Pan American Society for Clinical Virology2026
Nipah virus molecular detection from whole blood and respiratory swabs in a rapid field-ready protocol.
Article in Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology, 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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Abstract
backgroundNipah virus (NiV) is a highly pathogenic, zoonotic paramyxovirus with significant public health implications due to high associated mortality and potential for human-to-human transmission. Current diagnostic testing options for NiV are limited and require extensive laboratory infrastructure.
objectiveDevelop a field-deployable testing workflow for timely NiV detection. STUDY
designA NiV real-time RT-PCR (rRT-PCR) was designed for a highly conserved region of the nucleocapsid gene and tested with RNA from Bangladesh and Malaysia NiV strains. The NiV rRT-PCR was evaluated on Rotor-Gene Q and Palm PCR S1e thermocyclers following instrument free RNA extraction (Extract & Store).
resultsInitial analytical evaluation, on a Rotor-Gene Q, demonstrated dynamic amplification and a limit of detection (LoD) of 3.7-4.2 copies/µL without amplification of related paramyxoviruses. The assay was adapted for the portable, battery-powered, self-contained Palm PCR S1e thermocycler, and exhibited linear detection with a LoD of 30.7 copies/µL. RNA extraction from contrived whole blood and pharyngeal swabs using the Extract & Store workflow yielded comparable results to automated extraction on a KingFisher Apex instrument. The entire assay, including extracted and stabilized RNA controls from BSL-1 strains, was successfully transferred to Aga Khan University with ambient temperature shipping and yielded similar performance.
conclusionsThe combination of Extract & Store and the Palm PCR S1e device offers a viable solution for field-based molecular detection of NiV. While limitations were noted for reaction setup on the Palm PCR, this presents a flexible and accessible workflow for rapid, portable detection of high-consequence pathogens in resource-constrained settings.
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