Causes of Zika virus Harm Male Fertility?

Researchers at the CDC are working with a fertility clinic in Puerto Rico, which has done hard-hit by Zika, to decide if men affected by the virus should lower sperm counts or sperm that doesn't work as great in the weeks and months after virus.
That study took begun just last month and so far has enrolled just a handful of men. It usually takes about 90 days for a man to generate sperm, so researchers are preparing to track them for at least 6 months to estimate any changes.
"It's going to be important for us to follow them up for many months to rule in or rule out any results of Zika infection," says Tyler Sharp, Ph.D., chief epidemiologist at the CDC's Dengue Branch in San Juan, Puerto Rico.