Saskatchewan Health Authority (SHA) says there may have been COVID-19 exposures at four Regina businesses including Costco. Possible COVID-19 exposure on Regina transit, Saskatchewan Health Authority says The SHA says a person who tested positive for the novel coronavirus visited the following businesses when they were likely infectious:The SHA said anyone who was at the businesses on those dates and times should immediately self-isolate if they have COVID-19 symptoms and to contact the health line at 811 to arrange for testing.