Justin Trudeau said on Tuesday that Canada has reached an agreement with Pfizer to buy an additional 20 million doses of its COVID-19 vaccine.Speaking to the media, Trudeau said the agreements with Moderna and Pfizer means Canada will have 80 million doses of COVID-19 vaccines arriving this year.“We are on track to have every Canadian who wants a vaccine receive one by September,” he added. “If we can do it even quicker than that, that would be great news.