Nigeria has recorded a case of Ebola in a female patient who travelled from Uganda in East Africa to Abuja, capital of the West African state. Health Minister Muhammad Ali Pate said the diagnosis had been confirmed by laboratory tests. The patient, who health sources have told the BBC is not Nigerian and is the wife of a diplomat, is in isolation and receiving medical care after being admitted to a hospital in Abuja.
She developed symptoms on Wednesday 7 October, four days after arriving in the country, according to the World Health Organization (WHO). Health authorities have begun contact-tracing to prevent further spread, with 44 close contacts of the woman identified. Nigeria, the first West African state to report a case linked to the current Ebola crisis in East Africa, successfully stopped a previous outbreak in 2014.
Uganda's Ministry of Health has stressed there are currently no confirmed active Ebola cases in the country. "We urge the public to remain calm, vigilant and to practice regular handwashing and sanitising," it said. Is Ebola under control in Kenya after nine cases confirmed?
What is Ebola and why is stopping the latest outbreak so difficult? Ebola is a rare but deadly disease, external caused by a virus. As the disease progresses, vomiting and diarrhoea develop and it can lead to organ failure.
Some, but not all, patients develop internal and external bleeding. The disease spreads from one person to another by contact with infected bodily fluids such as blood or vomit. The outbreak in Democratic Republic of Congo, which began in May, has claimed at least 4,600 lives, with more than 9,500 cases recorded, the European Centre for Disease Prevention and Control reports, external.
It was caused by the Bundibugyo species of Ebola, which is relatively rare, with no approved vaccine or treatment - though trials are under way. Shortly after the outbreak was announced, it was also reported in Uganda, where at least two people died. Uganda declared itself free of the disease in August after its last patient was discharged.
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