“All of the resort areas are Zika-free … the Zika problem is not throughout the country,” said Rodolfo Lopez Negrete, CEO of Mexico’s Tourism Board.
Negrete noted that there are currently 65 reported Zika cases in Mexico. Of those, 35 are in Chiapas, 21 in Oaxaca, four in Nueva Leon, and one each in Jalisco, Sinaloa, Guerrero, Veracruz and Yucatan.
Prevent mosquito bites by covering exposed skin with sleeved shirts and long pants, and socks.
Use Environmental Protection Agency (EPA)-registered insect repellents on exposed skin and reapply as directed. Insect repellents that contain DEET, Picaridin, oil of lemon eucalyptus (OLE) or IR3535 are very effective and safe when used according to the label. If also using sunscreen, apply sunscreen first and insect repellent second
Sleep under a mosquito net to prevent bites.
That is the official line above.
Personally, women who are or who are about to become pregnant, should not go to a tropical area.