Transportation/logistics is going to be a nightmare for this vaccine as it has to be delivered in extreme cold conditions, we're talking much colder than a freezer truck apparently. It's probably going to entail folks waiting in line at special distribution centers worldwide. This was the theory I got my Dad, a former CDC chief who worked on the National Vaccines for Children program in the 90s. I've also heard there is an effort to produce the vaccine in powdered form, which would solve a lot of issues.