The latest wastewater study from the University of Saskatchewan shows a massive spike in Saskatoon's COVID-19 viral load, signalling the start of a new wave of infections. On Monday, researchers released their latest report, showing a 742 per cent increase in viral load taken from sewage samples in the city. Toxicology professor John Giesy said these latest numbers come after COVID surges in Ontario and Quebec, as well as the UK and China, all driven by the more-infectious BA-2 subvariant of Omicron.