The current outbreak began with several cases in Guinea in March this year. It has since spread quickly throughout West Africa -- reaching across Guinea and into Sierra Leone, Liberia and Nigeria. As of July 27th, more than 7-hundred people in the four countries have died, with over a thousand thought to have been infected.
Symptoms are similar to the flu -- fever, weakness and headaches in the early stages, then progressing to vomiting and diarrhea. There is no cure or vaccine treatment yet.