https://www.channel3000.com/news/signal-in-the-sewer-how-wastewater-helps-scientists-detect-early-increases-in-covid-19-the/article_a4e6219c-6eb7-11ee-8181-8f7b7e99d405.html
MADISON, Wis. -- PCR and rapid tests aren't the only places where evidence of SARS-COV-2, commonly known as COVID-19, shows up. The virus that causes COVID-19 also turns up in
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