Canadians vaccinated in the spring could double if Health Canada gives the green light to all three vaccines it is currently reviewing.But Canada is unlikely to get any doses from those three companies directly until at least April, and confusion about deliveries of vaccines has thrown Canadian confidence in the Liberal government’s vaccine rollout into a tailspin.Prime Minister Justin Trudeau added to the confusion directly Friday when he said at a news conference outside his Rideau Cottage residence that he believed the 20 million doses Canada pre-ordered from AstraZeneca are to be delivered before the end of June.But he was wrong.