The December 17, WHO situation update is available here. According to this report, some progress is being made in Sierra Leone, which has replaced Liberia as the nation reporting the most incidents of transmission.
EVD transmission remains intense in Sierra Leone, with 327 new confirmed cases reported in the week to 14 December. While there are signs from the country situation reports that the increase in incidence has slowed and the incidence may no longer be increasing, the country reported the highest number of confirmed cases in epidemiological week 50.
A major effort was undertaken this week in Sierra Leone to alter population behaviors that are contributing to continued transmission of the disease. The Guardian (London) reports on some of the strategies being employed.
On Friday the Washington Post — which has done distinguished reporting on the Ebola outbreak in West Africa — published a big front page feature on the situation in Sierra Leone.
Also on Friday NPR interviewed the CDC Director who is the midst of a site visit to West Africa. Dr. Thomas Frieden warns of the risk that the virus might become endemic and therefore a perpetual source of recurring spikes in transmission.