The danish government has been doing that for a while, with open data available per region: https://en.ssi.dk/surveillance-and-preparedness/surveillance-in-denm

The danish government has been doing that for a while, with open data available per region: https://en.ssi.dk/surveillance-and-preparedness/surveillance-in-denmark/covid-19/national-surveillance-of-sars-cov-2-in-wastewater https://en.ssi.dk/surveillance-and-preparedness/surveillance... They also lead the EU wide project to track infections across the largest cities across europe: https://en.ssi.dk/surveillance-and-preparedness/international-coorporation/eu-wish https://en.ssi.dk/surveillance-and-preparedness/internationa...