Surveillance of wastewater data is suggesting that COVID-19 cases are on the rise again in Canada as provinces have eased public health restrictions. The resurgence is taking place in Ontario, Alberta, Saskatchewan and parts of British Columbia, according to an analysis by Global News. “The reality is that as all of the restrictions come off in terms of masking and the other measures which have been in place for some period of time, we can expect that more cases are going to be out there,” said Dr. Steve Hrudey, chair of the research advisory group of the Canadian Water Network COVID 19 Wastewater Coalition. “The next few days to weeks are going to be important to watch,” he said.