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What toilets can reveal about COVID, cancer and other health threats

A technician collects a water sample from a sedimentation tank for analysis at a wastewater treatment plant.

Samples of wastewater can be tested for the coronavirus SARS-CoV-2, an approach that could become part of routine disease surveillance. Credit: Sevrette/Andia via Alamy

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Nature 628, 492-494 (2024)

doi: https://doi.org/10.1038/d41586-024-01092-7

Updates & Corrections

  • Correction 24 April 2024: An earlier version of this News feature incorrectly stated that Tong Zhang and his colleagues at the University of Hong Kong are currently testing wastewater for COVID-19 at 20 sites around the city. This testing is being done by a government team, while Zhang’s team has expanded testing to other public-health concerns.

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