I'd heard about that. What an odd thing. What was the source that gave them the vaccine before this? That they can't make more now that it has all been dispersed into the African afflicted populace and these missionaries I wonder.
Here's an update too:
Blood of Ebola survivors seen as possible treatment - September 5,USA Today
I cannot speak too why, as my knowladge of how and how long it takes to make a vaccine is limited.
But from what is being said, even if they find an effective vaccine, it would be a year before it would be made and still on a limited basis.
Its interesting , when the swine flu vaccine came out, many would not use it and there was great concern about how quickly it was made available, many certain it had to be flawed, dangerous.
But now in trying to find a vaccine for e-bola, these same question why there is not one already quickly available?
There is always the queston of conspearacy, but we must remain mindful, that conspearacy is a tool of satan.
The people are the willing, maby fearfull pawns he uses.
Remember, our battles are with the powers and principalities of evil.
May we always remain mindful of this, so we do not pass an unfair judgement on any.
E-bola is a true concern, and for many, frightening.
The 21 day incubation is the biggest threat of this disease, for it can travel far in 21 days.
The greater threat though is panic, for fear breeds many worse results, and it is such that destroys.
Like Ive said before,

Psalm 91 is a good comfort and trust spoken to.
God bless
pickles