Don't be a smarty pants if you don't know what you are talking about. Smallpox has no animal vectors. It was only a human infection. During the WHO eradication plan, all reported cases were "ringed" in by vaccinating the population of the region. This combined with quarantine did eradicate all "wild" smallpox. The CDC never claimed to have killed it all. Everyone in the medical community has known of its storage in the USSR and US military labs. There was even a movement ten years ago to destroy these supplies. Some "goobers" even questioned if it was right to cause the extintion of a viral species, what dorks(but I digress). Anyway, it was determined way back then that several rogue states (N. Korea and Iraq) may have secretly stashed some of the virus and for security reasons; our stockpile would be kept. The CDC was never blowing smoke about eradication. This was just an oversimplification by the press.