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Related Concept Videos

Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
262

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Related Experiment Video

Updated: Oct 21, 2025

Quantification and Whole Genome Characterization of SARS-CoV-2 RNA in Wastewater and Air Samples
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City-level SARS-CoV-2 sewage surveillance.

Karin Yaniv1, Marilou Shagan1, Yair E Lewis2

  • 1Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, PO Box 653, BeerSheva 8410501, Israel.

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Summary

Wastewater monitoring effectively tracks SARS-CoV-2 (the virus that causes COVID-19) RNA. This method provides an early warning system for population-level disease activity before clinical outbreaks are apparent.

Keywords:
Early warningNormalized viral loadPopulation monitoringSARS-CoV-2Wastewater epidemiology

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Area of Science:

  • Environmental Science
  • Epidemiology
  • Public Health

Background:

  • The COVID-19 pandemic necessitates innovative disease surveillance methods.
  • SARS-CoV-2 RNA is detectable in wastewater, suggesting its potential for monitoring.
  • Wastewater surveillance offers an efficient tool for epidemiological tracking and early warning.

Purpose of the Study:

  • To assess the feasibility of wastewater monitoring for SARS-CoV-2 surveillance.
  • To develop a method for quantifying viral RNA in urban wastewater.
  • To evaluate wastewater monitoring as an early warning system for COVID-19 outbreaks.

Main Methods:

  • Sampling of urban wastewater infrastructure in Ashkelon, Israel.
  • Detection and quantification of SARS-CoV-2 RNA in wastewater samples.
  • Development of a Normalized Viral Load (NVL) index to assess virus activity.

Main Results:

  • SARS-CoV-2 RNA was detected in wastewater samples from multiple locations.
  • The Normalized Viral Load (NVL) index showed varying levels of virus activity.
  • An increase in viral load preceded a clinically apparent rise in COVID-19 morbidity by 2-4 weeks.

Conclusions:

  • Wastewater monitoring is a viable tool for epidemiological surveillance of SARS-CoV-2.
  • The NVL index can indicate population-level virus activity and predict future outbreaks.
  • This methodology offers a proactive approach to managing public health during pandemics.