There is no vaccine that prevents infection with the Zika virus. If you do travel to one of the countries with an ongoing outbreak, use mosquito repellant with DEET and wear long-sleeved shirts and pants. Avoid areas with standing water either inside or outside a home and try to stay in buildings with screened windows and doors. The infected mosquitos bite during the early morning and evening hours and do travel indoors. Pregnant women and women who are trying to become pregnant and need to travel to one of the affected areas should consult with their health care provider before visiting one of the Zika outbreak regions.