On the question of supply, how hard can it be? What decade technology are we talking about here? 1940? 1910? 1890?
In 1980, as a result of Jenner's discovery, the World Health Assembly officially declared "the world and its peoples" free from endemic smallpox.
I get very suspicious of why they are pretending it's hard to fill the supplies. It can't be incompetence because the small pox virus and vaccine aren't new issues they are really having to learn about for the first time.