![Wastewater helped us track COVID-19 strains. Some say it can do the same for drug use](https://cdn.newsserve.net/en/knowledge/Ayesha-Rascoe_20230915.jpg)
Wastewater helped us track COVID-19 strains. Some say it can do the same for drug use
NPR's Ayesha Rascoe talks with epidemiologist João Matias of the European Monitoring Centre for Drugs and Drug Addiction about the organization's latest wastewater and drug detection analysis.
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