A study in mice suggests that Zika can have an impact on fertility, but other studies are needed (in humans) to determine whether it can also affect men.
Researchers from the School of Medicine at the University of Washington in the United States, studied a group of mice infected with the virus for three weeks.
After that period, they detected that the mice’s testicles had shrunk, and showed lower testosterone levels, lower sperm count and were less likely to impregnate female mice.
Other studies have shown that zika could remain in men’s semen for months and that is why health authorities around the world are recommending that men who have traveled to regions with outbreaks of the virus, should use condoms for 6 months, even if they have no symptoms of the virus.