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The World Health Organization (WHO) has rebuked Tanzania for failing to provide information about possible Ebola virus infections.
The WHO said it had learned of one suspected fatal case in Dar es Salaam and two others but, despite repeated requests, was given no information.
Tanzania has said it has no suspected or confirmed cases.
The latest outbreak has killed more than 2,000 in eastern DR Congo, with Uganda battling to stop any spread. Read more