It appears from this story that a vaccine that's effective may have been developed, although for ethical reasons indirect evidence -- an increased immune response with increased dosage -- is used to measure effectiveness.
One problem, as the article says, is inadequate production facilities. This problem, it would seem, is one that money could help with. Given the general nature of the threat, this is something government should spend money on.
Even if, provided vaccination works, we'll never know the magnitude of the threat we averted.