It has been almost three years since the start of the Ebola epidemic in West Africa. It killed more than 11,000 people and laid bare the weaknesses of public health systems in the region. No new Ebola cases have been reported since March, but the three most affected countries remain on alert. VOA traveled along the path of the outbreak to find out what has changed and how the region might cope if the virus starts spreading again. Ricci Shryock reports.