Since the World Health Organisation has declared this virus out break a state of public health emergency, it has been spreading from Brazil to the Americas and has hit Dallas which is a state in America.
The case in Dallas was contacted through sexual intercourse as reported by the Centers for Disease Control (CDC) in the United States. This is a very rare case because the patient did not travel to an infected area but their partner returned from an infected area.
Zika virus is caused by being bitten by an infected Aedes specie mosquito leading to brain malformation in babies. Some countries have gone as far as advising women to delay getting pregnant.