OTTAWA — Conservative Leader Erin O’Toole accused the Liberal government Sunday of putting too much emphasis on partnering with a Chinese company for a COVID-19 vaccine in what turned out to be a failed deal. O’Toole said the Trudeau government only turned its attention to pre-ordering tens of millions of vaccine doses from companies such as Pfizer and Moderna in August after its collaboration between the National Research Council and Chinese vaccine-maker CanSino finally collapsed after months of delays.