Kristen Villebrun and Wendy Bush hoped they wouldn't have to pray for Chedoke Creek, but four years after they first raised alarm about the water's condition, they were part of an Indigenous full moon ceremony to do just that. About 50 people showed up near Princess Point on the dark and frigid Monday evening for the monthly ceremony, which was particularly special as it focused on Chedoke Creek. The body of water that runs into Cootes Paradise had about 24 billion litres of sewage and storm water runoff leak into it due to a gate being left open.
When the pandemic started, the province was testing the population and updating the number of COVID cases daily. But four years on, testing has stalled and the main way to get a snapshot of the COVID picture is through wastewater. Mark Servos is with the department of Biology in Canada and Research Chair in Water Quality Protection at the University of Waterloo.
Inside the Pine Creek wastewater treatment plant in the south of Calgary, a lab run by the University of Calgary is busy processing wastewater samples from municipalities across the province. This lab, along with one operated by the University of Alberta, started tracing levels of the SARS-CoV-2 virus in wastewater in early 2020 — providing Alberta Health Services with infection trends in different communities. Now the project has expanded to check for influenza A and B, as well as RSV — respiratory viruses that are all currently putting a strain on Alberta's health care system.
Researchers at the University of Ottawa are using the wastewater testing strategy that has helped track the ebbs and flows of coronavirus and applying it to influenza. Patrick D'Aoust, a PhD candidate in the faculty of engineering, said the idea came from one his colleagues, Elisabeth Mercier, and the success of the wastewater testing used to track levels of coronavirus in Ottawa. "She said, 'You know we're looking [for] COVID-19. It's an RNA virus. Why don't we just start looking at other RNA viruses?" D'Aoust said.
