How Ebola Spread in Liberia, 2014-2015 (IMAGE) Cell Press Caption Ladner et al. sequenced 140 Ebola virus genomes sampled throughout 11 months across 13 Liberian counties. This visual abstract represents the analysis, which reveals that, despite multiple introductions, the Liberian outbreak was driven by within country spread and diversification. Multiple re-introductions of Ebola virus from Liberia contributed to transmission within Guinea. Credit Ladner, Wiley, Mate et al./Cell Host & Microbe 2015 Usage Restrictions Credit Required. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.