OTTAWA—Canada’s two largest provinces are now under significant restrictions to curb surging cases of COVID-19 and a professional group for emergency doctors is calling for more transparency around vaccine distribution. Ontario’s stay-at-home order came into effect Thursday as the province reported 62 more deaths and 3,326 new novel coronavirus infections. Among added measures is a requirement for people to wear a mask inside businesses and restrictions on the size of gatherings. All non-essential retail stores may only open between 7 a.m. and 8 p.m. Premier Doug Ford has said everyone must stay home and only go out for essential trips. The number of COVID-19 cases, including the new United Kingdom variant, are increasing rapidly in the province. But Ontario has so far avoided bringing in a curfew like one enacted in Quebec last weekend. Hospitalizations continued to rise in Quebec to 1,523, with 230 people in intensive care. The province …