When it comes to understanding where the COVID-19 virus might be turning up in high numbers, the answer could be in the water. Wastewater, to be exact. Testing wastewater, as well as monitoring social media, can give an idea of how prevalent the virus is in specific areas. While many parts of Canada are imposing restrictions on testing for the virus, Lawrence Goodridge, a professor of food microbiology at the University of Guelph, is learning how testing water from sewers and water treatment plants can be a valuable tool in tracing the virus.