Michigan is searching the state’s sewers for the virus that causes COVID-19.
Great Lakes Echo
http://greatlakesecho.org/2020/11/10/project-begins-testing-sewage-for-covid-19-across-michigan/
Great Lakes Echo
http://greatlakesecho.org/2020/11/10/project-begins-testing-sewage-for-covid-19-across-michigan/