11 March 2015 - In February 2015, cases of Ebola began appearing among the community of fishermen living in the coastal area of Aberdeen in Freetown, Sierra Leone. Over 20 cases occurred at the same time, suggesting they had been infected by one source, possibly an unsafe burial. WHO and partners immediately sent teams into the district to work with the community to identify all Ebola cases and those who had been in contact with them, to prevent further infections.