The Ebola virus can persist in the semen of some survivors for at least nine months.
That’s according to the preliminary results of a study published in New England Journal of Medicine on Wednesday.
The study tracked 93 male Ebola survivors over the age of 18 from Freetown, Sierra Leone.
They provided semen samples to test for the virus.
For men who were tested in the first three months after becoming ill, all were positive.
The risk it seems decreased over time, but still persisted in some men.
Moreover, a separate study in the same journal found that the Ebola virus could spread through sex.
Experts suggest that until a male Ebola survivor’s semen has twice tested negative, he should abstain from all types of sex or use condoms.