The World Health Organization, WHO, has advised all male survivors of Ebola to be tested three months after the onset of symptoms and then monthly until they know they have no risk of passing on the virus through their semen.
Bruce Aylward, Head of the WHO’s Ebola Response, said on Thursday in Geneva that isolated flare-ups of Ebola may point to a higher risk of transmission via the semen of male survivors than previously thought.
“It’s not the sex that is dangerous; it’s the semen that is dangerous. How people actually get exposed, in soiled linens or whatever, is not clear.
“Transmission through semen may explain why a few cases continue to occur even though the outbreak has been almost completely eradicated by an intense international effort, recently bolstered by the deployment of a trial vaccine in Guinea and Sierra Leone,’’ he said.
Aylward said the latest flare-up, in a village on the northern border of Sierra Leone, followed the death of a 67-year-old woman late last month, 50 days after the previous confirmed case in the region.
He said transmission chains were considered to have been broken after 42 days with no new infections.
However, Aylward said that sexual transmission was “obviously not a huge risk, because if it were we would have seen a lot more in the areas that were hardest hit at the beginning of this outbreak.”
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