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Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
Published on: September 13, 2018
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Viral discovery as a tool for pandemic preparedness
Summary
Emerging zoonotic diseases pose a public health challenge due to unknown viral pathogens in wildlife. Early detection requires improved pathogen discovery techniques for rapid response to outbreaks.
Area of Science:
- Virology
- Epidemiology
- Public Health
Background:
- Emerging infectious diseases often originate from novel zoonotic viral pathogens in wildlife.
- Lack of specific diagnostic assays at outbreak onset delays identification of the causative agent and source.
- Understanding wildlife viral diversity is crucial for predicting and mitigating zoonotic spillover events.
Purpose of the Study:
- To review current pathogen discovery techniques for identifying novel zoonotic viruses.
- To assess the challenges and utility of molecular and serological methods in surveillance programs.
- To inform strategies for reducing the risk of zoonotic disease emergence from wildlife reservoirs.
Main Methods:
- Review of pathogen discovery techniques including consensus polymerase chain reaction (cPCR) and next-generation sequencing (NGS).
- Analysis of the application of metagenomic studies in identifying known and novel viruses.
- Evaluation of the sensitivity, accessibility, and limitations of cPCR and NGS in surveillance.
Main Results:
- cPCR and NGS are valuable tools for identifying viruses in animals and humans, but their use in surveillance varies.
- NGS offers unbiased viral detection but has limitations in sensitivity and requires significant bioinformatics resources.
- cPCR is sensitive and uses widely available technology but is limited to detecting conserved genetic sequences.
Conclusions:
- Combining cPCR, NGS, and serology offers a powerful approach for rapid outbreak agent identification.
- Effective surveillance requires characterizing the virome of wildlife reservoirs known to carry zoonotic viruses.
- Addressing challenges in pathogen discovery is essential for timely response to zoonotic disease emergence.
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