“…By far the largest numbers of cases and deaths occurred in Guinea, Liberia, and Sierra Leone, but an additional 36 cases were also reported from Italy, Mali, Nigeria, Senegal, Spain, the United Kingdom, and the United States. 1 After reaching a peak of 950 confirmed cases per week in September 2014, the incidence dropped markedly toward the end of that year. But it took much longer to stop all chains of transmission: the outbreaks in Liberia, Sierra Leone, and Guinea ended in May, November, and December 2015, respectively, although additional cases of EVD, probably arising from virus persisting in the tissues and body fluids of survivors, have continued to be reported in all three countries.…”