ECDC has published Rapid risk assessment: Outbreak of Ebola haemorrhagic fever in Guinea. Click through to download the 7-page PDF, and you should; it's the most detailed, informative, and fully referenced single document I've seen on the subject, and I expect to be referring to it frequently in the near future. The abstract:
An outbreak of Ebola haemorrhagic fever is currently ongoing in Guinea. Eighty cases were reported, including 59 deaths. This is the first such outbreak in Guinea.
As of 23 March 2014, the situation in Sierra Leone is also under investigation, as there are concerns about the disease’s spread in the districts which border affected prefectures in Guinea.
EU citizens in Guinea are not at risk of becoming infected unless they are in direct contact with body fluids of infected persons or animals.