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"With growing concern about the circulation of vaccine-derived polioviruses in the United States, the Centers for Disease Control and Prevention said Wednesday that it would work with select communities across the country to conduct wastewater surveillance for the viruses."
https://www.statnews.com/2022/11/30/polioviruses-polio-cdc-intiative-test-wastewater/
@cyrilpedia well that's mighty white of them.