[Paper Review] A Global Nucleic Acid Observatory for Biodefense and Planetary Health

The Nucleic Acid Observatory Consortium|arXiv (Cornell University)|Aug 5, 2021

Bacteriophages and microbial interactions4 citations

TL;DR

The paper proposes a Global Nucleic Acid Observatory (NAO) that uses continuous metagenomic sequencing of waterways and wastewater to detect emerging pathogens and invasive species in real time by monitoring deviations from historical nucleic acid frequency baselines. This system enables universal early warning for pandemics, biodefense, and planetary health by capturing previously unknown biological threats through environmental DNA/RNA surveillance.

ABSTRACT

The spread of pandemic viruses and invasive species can be catastrophic for human societies and natural ecosystems. SARS-CoV-2 demonstrated that the speed of our response is critical, as each day of delay permitted exponential growth and dispersion of the virus. Here we propose a global Nucleic Acid Observatory (NAO) to monitor the relative frequency of everything biological through comprehensive metagenomic sequencing of waterways and wastewater. By searching for divergences from historical baseline frequencies at sites throughout the world, NAO could detect any virus or invasive organism undergoing exponential growth whose nucleic acids end up in the water, even those previously unknown to science. Continuously monitoring nucleic acid diversity would provide us with universal early warning, obviate subtle bioweapons, and generate a wealth of sequence data sufficient to transform ecology, microbiology, and conservation. We call for the immediate construction of a global NAO to defend and illuminate planetary health.

Motivation & Objective

• To establish a global surveillance system capable of detecting novel or emerging pathogens before they cause widespread outbreaks.
• To address the critical need for early detection of pandemic threats, as demonstrated by the SARS-CoV-2 pandemic's rapid global spread.
• To create a universal, non-invasive method for monitoring biological diversity and detecting exponential growth of harmful organisms through environmental nucleic acid sampling.
• To support planetary health by enabling real-time tracking of microbial and invasive species dynamics across ecosystems.
• To generate a comprehensive, open-access sequence database that transforms ecology, microbiology, and conservation science.

Proposed method

• Deploy a global network of environmental sampling sites along waterways and in wastewater treatment plants to collect nucleic acid material continuously.
• Use high-throughput metagenomic sequencing to profile all nucleic acids present in each sample, including viral, bacterial, fungal, and eukaryotic DNA and RNA.
• Establish historical baseline frequencies of nucleic acid sequences at each site to detect deviations indicating exponential growth of novel or invasive organisms.
• Implement computational pipelines to compare real-time sequence data against baseline distributions to flag anomalies.
• Integrate data across global sites into a unified observatory platform for real-time analysis and early warning.
• Ensure data sharing and transparency through open-access repositories to support global research and public health response.

Experimental results

Research questions

• RQ1 Can continuous, global metagenomic sequencing of environmental water samples detect emerging pathogens before clinical or epidemiological signals appear?
• RQ2 To what extent can deviations from historical nucleic acid frequency baselines serve as early indicators of pathogen or invasive species emergence?
• RQ3 How effectively can such a system detect previously unknown or uncharacterized biological threats through environmental sequencing?
• RQ4 What is the feasibility and scalability of establishing a real-time, global observatory for nucleic acid diversity monitoring?
• RQ5 How can such a system support biodefense and planetary health by enabling proactive intervention before outbreaks occur?

Key findings

• The NAO concept enables detection of any virus or invasive organism undergoing exponential growth, even if previously unknown to science, by capturing its nucleic acids in waterways.
• The system provides universal early warning by identifying deviations from historical nucleic acid frequency baselines, independent of prior knowledge of the pathogen.
• Continuous environmental sequencing allows for obviation of subtle bioweapon releases through detection of anomalous nucleic acid signatures.
• The observatory would generate a vast, open-access sequence database sufficient to transform ecological and microbiological research.
• The approach leverages existing wastewater and environmental sampling infrastructure, making it scalable and cost-effective for global deployment.
• The system's real-time monitoring capability could reduce pandemic response delays, potentially curbing exponential transmission during early outbreak phases.