In May 2015, the first local transmission of Zika virus infection (Zika) was reported in South America. Local transmission means that mosquitoes in the area have been infected with Zika virus, spreading it to people. Since then, six South American countries have reported cases of Zika. The virus was detected in Mexico and Central America in November 2015, and in Puerto Rico and the Caribbean in December 2015.
The risk of mosquito-borne transmission on aircraft is extremely low.
The US Centers for Disease Control and Prevention (CDC) have published notices for the various geographic regions, attached. Air crew travelling to countries where the Zika virus is spreading should follow the recommendations in the travel notice. These recommendations are not new and are valid against all mosquito bites; therefore they are good protection against any diseases transmitted by mosquitoes. In addition, the CDC’s Traveler’s Health Website is publishing updated travel health notices here: http://wwwnc.cdc.gov/travel/notices.
Specific areas where Zika virus transmission is ongoing are often difficult to determine and are likely to change over time. As more information becomes available, the travel notices will be updated. Please consult the CDC website regularly for the most up-to-date recommendations.