The World Health Organization (WHO) says the emergence of an Ebola virus disease outbreak in West Africa in 2014 has become a challenge to the three countries involved; Guinea, Liberia and Sierra Leone.

The governments of the three countries are working intensively with WHO and other partners to build-up a series of measures to control the outbreak.

A statement issued by Fadéla Chaib, WHO Communications Officer and copied to the Ghana News Agency on Friday said since March 2014, more than 600 cases of Ebola and over 390 deaths had been reported in Guinea, Liberia and Sierra Leone.

It said while the number of suspected, probable and confirmed cases and deaths change rapidly, the outbreak is causing concern among health authorities because the deadly disease is being transmitted in communities and in health-care settings, and it had appeared in cities as well as rural and border areas.

The statement said the disease, which causes severe hemorrhaging and could kill up to 90 per cent of those infected, is spread by direct contact with the blood and body fluids of infected animals or people. WHO, the Global Alert and Response Network (GOARN) and its partners are providing guidance and support, and have deployed teams of experts to West African countries and to WHO’s African Regional Office in Brazzaville, Congo.

These experts include epidemiologists to work with the countries in surveillance and monitoring of the outbreak, laboratory experts to support mobile field laboratories for early confirmation of Ebola cases, and clinical management experts to help health facilities treat affected patients.

Others are infection and prevention control experts to help the countries stop community and health-care facility transmission of the virus, logisticians to dispatch needed equipment and materials and social mobilization and risk communications teams to help health officials deliver appropriate messages about how to report, handle, and treat Ebola cases.

It said recognizing that a coordinated regional response is essential, WHO is convening the leading health authorities from the affected and nearby countries in Accra, Ghana from July 2 to 3, to agree on a comprehensive operational response to control the Ebola outbreak.

It said a wide range of partners had been invited, and Ministries of Health of Guinea, Liberia, and Sierra Leone would report on their preventive and control measures, contact identification and tracing; case management; infection and prevention control; social mobilization; and situation reports.

It said: “The countries are working to bring supportive care to the ill, inform affected communities of recommended practices, trace contacts of infected patients, control infections in health care settings, and “taking other measures to control the outbreak.

"Despite their progress in implementing preventive and control measures, health authorities still face challenges in curbing the spread of the outbreak, and will discuss these at the Accra meeting.” The statement said the latest numbers, which change as cases are discovered, investigated, or discarded, are: Guinea has reported some 396 cases and 280 deaths; Sierra Leone has 176 cases and 78 deaths, and Liberia, 63 cases and 41 deaths.