It took 16 years of twists and turns. Over and over, NIH’s Dr. Nancy Sullivan thought she was close to an Ebola vaccine, only to see the next experiment fail. But it is those failures that Sullivan credits for finally leading her to a vaccine promising enough to test in parts of West Africa ravaged by Ebola. Last week, volunteers in Liberia's capital began rolling up their sleeves for the first large-scale testing of two potential Ebola vaccines, the one Sullivan developed at NIH and a similar one created by Canada's government. "Thank God we had some of these" underway, said UTMB’s Thomas Geisbert, an early collaborator on the Canadian vaccine who helped with some of Sullivan's initial work and now researches treatments. "You can't do that research in six months.” The news also appeared in Associated Press-The Big Story, The Austin American-Statesman, The Houston Chronicle, The San Antonio Express-News, Odessa American, The Lufkin News, The Beaumont Enterprise, The Brownsville Herald, The Brazozport Facts, The Baytown Sun, The Tyler Morning Telegraph, El Paso Inc., The Guardian, The Seattle Times, Yahoo! Canada, Yahoo! UK & Ireland, Yahoo! India, ABC 7-Denver, NBC 5 - Memphis, Global News, St. Louis Post-Dispatch, Wall Street Business Network 1570 AM, The Philadelphia Inquirer, The Miami Herald, The Raleigh News & Observer and Las Vegas Sun, among others.