Traces of Ebola have been found in Liberia man's semen six months after his recover.
Traces of Ebola have been found in the semen of a man six months after his recovery, the World Health Organisation(WHO) said on Wednesday, urging survivors to practise safe sex "until further notice".
The man had been declared free of the deadly virus in Liberia in September 2014, said WHO spokesman Tarik Jasarevic. "He has provided a semen sample which has tested... positive for Ebola, 175 days after his negative blood test," he said in an email.
The UN health agency had previously said the virus had been detected in semen around three months after a patient had been declared Ebola free. The new finding has led WHO to recommend that survivors abstain from having sex or that they practise safe sex using a condom beyond the three-month period previously prescribed.
"Ebola survivors should consider correct and consistent use of condoms for all sexual acts beyond three months until more information is available," it says on its website.
Jasarevic said more research was needed before WHO could provide more detailed advice. "We need to understand better if this particular case is an anomaly or if there really are groups of people who might (carry) parts of the Ebola virus longer," he said.
Until more is known, Ebola survivors should abstain from sex or practicer safe sex "until further notice," Bruce Aylward, who heads WHO's Ebola response, told reporters last week. Aylward added, a number of studies were already under way, as well as discussions about whether Ebola survivors should be systematically screened after three months to determine their status. "We should have answers to allow us to give more definitive advice to survivors very, very quickly," he said.
The deadliest outbreak of Ebola in history began in late 2013 and has killed more than 10,600 people, mainly in Liberia, Sierra Leone and Guinea.
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