The World Health Organization is advising that Ebola survivors use a condom or abstain from sex until further notice, after the virus was found in a man's semen six months after a negative blood test.

WHO spokesman Tarik Jasarevic told AFP in an email that the man, with undisclosed identity, was declared Ebola-free in September via a negative blood test, but his semen sample tested positive for Ebola 175 days later. Jasarevic said it needs to understand whether the case is an anomaly or some people can carry the EVD longer.

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Source: http://thesummary.com.ng/index.php/health2/item/413-ebola-disease-can-be-transmitted-through-sex-who