Q: Can Zika be transmitted through sexual intercourse? A: It is possible. Zika is primarily transmitted through the Aedes aegypti mosquito, but some cases have been reported that appear to be the result of sexual transmission. Q: How can I protect myself? A: All people who have been infected with Zika and their sexual partners, especially pregnant women, should be educated about the risk of sexual transmission of Zika, contraceptive methods, and safer sex practices. If feasible, these individuals should have access to condoms and insist on the correct use of this contraceptive. Women who have had unprotected sex and suspect they may be infected with the virus should receive emergency contraceptive services and counseling if they do not wish to become pregnant. Sexual partners of pregnant women living in or returning from areas where local transmission of Zika virus is known to occur should use safer sex (throughout pregnancy) or abstain from sex. Q: Most people who become infected with Zika virus do not have symptoms. Does this fact affect this guidance? A: Yes, asymptomaticness is indeed a complicating factor. Because most people with Zika virus are asymptomatic, people living in areas where local transmission of Zika virus is known to occur should consider safer sexual practices or abstinence. In addition, individuals returning from an area where local transmission of Zika virus is known to occur should use safer sexual practices or consider abstaining from sex for at least four weeks after their return. Even in the absence of a Zika virus outbreak, WHO has been recommending safer sexual practices, including the consistent and correct use of condoms to prevent HIV, other sexually transmitted infections and unintended pregnancy. Q: Zika virus has been found in semen. Should semen be routinely tested for Zika virus? A: WHO does not recommend routine semen testing for Zika virus.