Coronavirus: Winnipeg man’s false negative put entire family at risk, says mother A new mobile test site opened Wednesday in Winnipeg.Located at Portage and Wall Street, the site is a partnership between the provincial government, Shared Health, and medical laboratory service Dynacare.The province said Wednesday that the site would open seven days a week from 8 a.m. – 4 p.m.The three additional drive-thru sites will be on Regent Avenue West, one near Polo Park on King Edward Street and a to-be-determined site in southern Winnipeg.Those are expected to open over the next few weeks..