They have not yet developed a vaccine for the disease.
The finding may be a step toward developing a vaccine.
Drug companies and government researchers are working now to develop vaccines.
Four companies have developed potential vaccines and plan clinical studies.
The experiment is the first step in a long process of developing an effective vaccine.
And she had developed a vaccine- for Federation member species, at least.
No treatment is available, thus the urgency in developing a vaccine.
But little money has been committed to developing such vaccines.
"If you want to try to develop a vaccine, that's a problem."
Team members added that the prospects of developing a vaccine were good.