Zika is a disease caused by infection with Zika virus and typically occurs in tropical and subtropical areas in parts of Africa, the Americas, Asia, and the Western Pacific.
Zika virus is most commonly spread to people by the bite of an infected Aedes species mosquito. It can also be spread through sex from a person who is infected with Zika virus to their sexual partner. Zika virus can be passed from a pregnant person to their fetus.
Many people infected with Zika virus will not have symptoms or will only have mild symptoms. The most common symptoms are fever, rash, headache, joint and muscle pain, and red eyes. Infection during pregnancy can cause certain birth defects.
There is currently no vaccine to prevent or medicine to treat Zika.