Doctors Without Borders is calling it a "champagne moment." The World Health Organization says it's a "game changer."
In a small trial, an experimental vaccine protected 100 percent of participants who were at high risk for the virus. Although the results are preliminary, they offer new hope of finally stamping out the virus in West Africa — and preventing the next epidemic.
Giving away something that could make you a billion dollars sounds foolish. But Dr. Jay Bradner believes it's essential to share even the most prized scientific discoveries if we hope to find a cure for cancer.