Grocery stores are struggling with rising labour and product shortages that could threaten Canada’s food security, experts say. Employee absenteeism due to workers calling in sick and COVID-19 protocols has hit about 30 percent at some stores and is continuing to rise, Gary Sands, senior vice-president of public policy with the Canadian Federation of Independent Grocers, said Tuesday. Without access to rapid testing in many provinces, he said workers are repeatedly forced to isolate for a week or more after an exposure to COVID-19. If the situation worsens, some grocery stores won’t be able to stay open—threatening food security in rural and remote areas that rely on a sole independent grocer, Sands said. “If we have to keep sending people home, at a certain point stores are not going to be able to operate,” he said. “We’re very frustrated with the lack of rapid test kits for grocers.” Health Canada …