Human tests of experimental Ebola vaccine set to start
U.S. agencies announce vaccination trials will begin in early September
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/08/ns_ebola_feat_free.jpg?fit=860%2C460&ssl=1)
BETTER DEFENSE Human tests of an experimental vaccine against the fatal Ebola virus (shown in a false-color micrograph) are slated to begin in early September.
Frederick A. Murphy/CDC