According to the latest research, Zika virus might not remain in the semen of some infected men as long as previously thought.
The researchers said Zika may only be present in semen for about a month. Previous research had suggested that Zika virus can be found in semen for as long as 188 days after the onset of symptoms.
The new study included 12 men in French Guiana who had Zika virus. Four of the men never had any detectable Zika in their semen. One excreted Zika virus in his semen for at least three days. And seven had Zika-laced semen for at least a month.
The maximum duration of detectable Zika in semen in the study was 45 days.
These data suggest that not all men who are symptomatically infected with Zika virus will have Zika virus RNA detectable in semen.
The results also showed that Zika does replicate in the testicles or semen-producing glands, since the amount of Zika in semen was significantly different than the Zika load found in the men's blood.
Zika causes neurological birth defects, most commonly microcephaly, a condition in which a baby's brain and skull are underdeveloped.
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