This is a long way off, if it even ever works. I do not think it is very promising, out of the almost 200, 37 still got PA, not what I would call sucess....actually looks more of a possible preventatve thing, instead of a vaccine, that stops something....Plus this is all coming from Europe, where it was being developed, but the trials stopped because it was not being as sucessful as they had hoped. Now it looks like another company has bought them, and going to go back and try some more things....prehaps this article was put out there, so that they can get their stock prices up to fund the research...