Ebola virus disease
IN FEBRUARY 2014, an outbreak of haemorrhagic fever later identified as Ebola virus disease (EVD) occurred in Guinea. This was the first time EVD occurred in Guinea. The outbreak, the worst on record, continues, having spread to Liberia, Nigeria and Sierra Leone.
Since the outbreak began, there have been over 2400 cases with more than 1300 deaths (fatality rate of about 55%). The affected countries (Guinea, Liberia, Nigeria and Sierra Leone) continue to report new cases.
Quarantine zones were set up in areas of high transmission, including some cities, in an attempt to control the