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Many countries are dropping their coronavirus restrictions, including mask wearing. Travel abroad is also becoming far easier. Also on the show: How the internet helped us to stay connected to the world during quarantine and lockdown.
In the western German state of Saarland, sewage samples are being tested for the coronavirus. Researchers from TU Darmstadt have been able to investigate the spread of COVID-19 variants. But the pilot project has not yet been rolled out nationwide.