This is all being coordinated through the COVAX facility, part of which is global UNICEF. That landscape is constantly changing. There have actually been a lot of funds already injected by Canada into not only the procurement and purchase of vaccines, but also the purchase of therapeutics, etc.
Right now, Canada is playing a leadership role, as are other major countries and foundations. It really is a global effort, and really speaks to the strength of multilateral co-operation.