AI Article Synopsis

  • Rift Valley fever virus (RVFV) is a mosquito-borne disease causing significant harm, like abortion in livestock, leading to economic losses in Africa and concerns over its spread and potential bioterrorism.
  • Recent changes in vector distribution and international trade have made RVFV a transboundary animal disease of high concern, necessitating improved detection methods.
  • The study introduces a new chromogenic pan-RVFV in situ hybridization (ISH) assay that uses FFPE tissues to reliably detect RVFV strains while maintaining important tissue morphology for visual analysis.

Article Abstract

Sporadic outbreaks of Rift Valley fever virus (RVFV), a zoonotic, mosquito-borne , cause abortion storms and death in sheep and cattle resulting in catastrophic economic impacts in endemic regions of Africa. More recently, with changes in competent vector distribution, growing international trade, and its potential use for bioterrorism, RVFV has become a transboundary animal disease of significant concern. New and sensitive techniques that determine RVFV presence, while lessening the potential for environmental contamination and human risk, through the use of inactivated, noninfectious samples such as formalin-fixed, paraffin-embedded (FFPE) tissues are needed. FFPE tissue hybridization (ISH) enables the detection of nucleic acid sequences within the visual context of cellular and tissue morphology. Here, we present a chromogenic pan-RVFV ISH assay based on RNAscope technology, which is able to detect multiple RVFV strains in FFPE tissues, enabling visual correlation of RVFV RNA presence with histopathologic lesions.

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Source
http://dx.doi.org/10.1089/vbz.2018.2383DOI Listing

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