ACCORDING TO the Center for Disease Control (CDC), the Zika virus has been confirmed in Mexico and all of Central America.
These countries are currently listed at alert level 2 which means that travelers should practice enhanced mosquito-bite precautions, particularly at-risk groups like pregnant women or couples planning a pregnancy. But this doesn’t mean that the region is totally out of bounds. The Zika-carrying mosquito isn’t found at altitudes above 6,500 feet, which lowers the risk of transmission. However, note that since the virus can also be transmitted sexually, Zika warnings apply to entire countries regardless of altitude.