The situation in Senegal, which confirmed its first case of Ebola virus disease on 29 August, remains stable. To date, 67 close contacts of the initial case have been identified and monitored twice daily.
2 of these contacts who developed symptoms were tested for Ebola. Test results were negative. An additional 3 suspected cases across the country were also tested, with negative results.
Starting from 29 August, forty-two days – twice the maximum incubation period – must pass with good surveillance in place and no additional cases reported, before WHO can declare Senegal transmission-free.
However, intense virus transmission in other countries within the sub-region creates a high risk that Senegal will experience additional introductions of Ebola cases.
Scientists do not fully understand why some Ebola patients recover and others succumb. Prior to the current outbreak, Ebola was considered a rare disease and clinical information is limited.
Some anecdotal case reports from the current outbreak in west Africa suggest that age and the presence of comorbidities are associated with a poor prognosis.
To support the global response to the current outbreak in west Africa, Senegal has agreed to open a humanitarian corridor to facilitate the transport and delivery of international personnel and supplies to affected countries.
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