Baffled investigators hope to reveal how many people in Blackwater may have been exposed or unknowingly have the virus
Scientists will sift through the sewage of a central Queensland town to try and determine the source of a Covid-19 infection that claimed the life of a 30-year-old man.
As Queensland recorded no new Covid-19 cases and only six active cases on Saturday, authorities remain baffled by the Blackwater infection.
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