Stock Photo - PRODUCTION - 25 May 2021, Saxony-Anhalt, Halle (Saale): Swetlana Rot prepares water samples in a laboratory of the Saxony-Anhalt State Office for Environmental Protection in Halle/Saale. The scientists here examine wastewater for the coronavirus pathogen. Particles of it can be detected in human stool. The government wants to take advantage of this and set up a kind of early warning system via waste water. (to dpa ""No miracle weapon - How waste water is used for early corona detection"") Photo: Hendrik Schmidt/dpa-Zentralbild/dpa. - Halle (Saale)/Saxony-Anhalt/Germany

Stock Photo: PRODUCTION - 25 May 2021, Saxony-Anhalt, Halle (Saale): Swetlana Rot prepares water samples in a laboratory of the Saxony-Anhalt State Office for Environmental.

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