WINNIPEG -- The province of Manitoba said a potential exposure to a COVID-19 variant of concern may have occurred on a Winnipeg transit bus almost two weeks ago. According to information on the province’s website, exposure to a variant of concern may have occurred on March 4 and 5 on Winnipeg Transit Route #16. The time of the potential exposure was between 11:09 a.m. and 12 p.m., from Osborne St. and River Ave. to Manitoba Ave. and Ellington St. It’s the third potential exposure to a variant of concern on a Winnipeg Transit Bus. Previous exposures occurred on Transit Routes 77 and 17 in February.