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Following a ten month period of low infection rates, the intensity and geographical area of EVD transmission have increased. In the week ending 31 May, a total of 25 confirmed cases were reported from 4 prefectures of Guinea and 3 districts of Sierra Leone. Several cases in both Guinea and Sierra Leone arose from unknown sources of infection, in areas that have not reported confirmed cases for several weeks, indicating that chains of transmission continue to go undetected.
As of 03 June 2015, more than 27 145 confirmed, probable and suspected cases of EVD and more than 11 147 deaths have been reported to WHO by the Ministries of Health for Guinea, Sierra Leone and Liberia. The distribution of the cases in West Africa is listed below, case numbers include confirmed, probable and suspected:
(Via WHO Ebola Situation Report 03/06/15 - accessed 04/06/15)
The risk of travellers becoming infected or developing Ebola haemorrhagic fever is extremely low, unless there has been direct contact with blood or bodily fluids of dead or living infected persons or animals. Healthcare workers are at particular risk, although practising appropriate infection control should effectively prevent transmission of disease in this setting.
Travellers returning from tropical countries should always seek rapid medical attention if they develop flu-like symptoms (such as fever, headache, diarrhoea or general malaise) within three weeks after return, and be reminded to mention to their health care provider that they have recently travelled.
• Further information on Viral Haemorrhagic Fevers.