Explanation:

Zika virus is primarily transmitted to people through the bite of an infected mosquito from the Aedes genus, mainly Aedes aegypti in tropical regions.

This is the same mosquito that transmits dengue, chikungunya and yellow fever. Although Zika virus is primarily transmitted through mosquitoes, it can also be sexually transmitted as well.

Zika can be transmitted through sex from a person who has Zika to his or her partners. Zika can be passed through sex, even if the infected person does not have symptoms at the time.