As of 26 May 2004, the health authorities of Yambio County have reported a total of 20 cases, including 5 deaths, of Ebola haemorrhagic fever (EHF) in Yambio, Western Equatoria, south Sudan.
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National authorities in the neighbouring countries of Democratic Republic of Congo (DRC) and in Uganda have enhanced surveillance in bordering areas (see map below). In DRC, a national team, supported by the WHO Country Office is alerting the local population, augmenting surveillance and performing active case finding. MSF teams in Province Orientale are also on the alert.

zona di epidemia: http://www.who.int/csr/don/en/sudan_ebola.jpg
http://www.who.int/csr/don/2004_05_26/en/