Slightly more than 91,000 Zika virus cases registered in Brazil

So far this year, slightly more than 91,000 cases of Zika virus have been registered in Brazil. The actual number of cases is probably 4 times this number since most infections have mild or no symptoms at all. These infections are not recorded in official statistics.

Visit our Health Library for more information on exposure to and the prevention of Zika Fever.

Advice For Travellers

The risk of exposure for the general traveller in any particular location is difficult to estimate since so many infected people have no symptoms and are not recorded officially.

There is no vaccine or specific treatment for this infection. Travellers can minimize the risk of exposure by taking all necessary precautions to avoid mosquito bites.

There is significant scientific evidence that this virus may be the cause of microcephaly (small brain) in newborn infants. As a precautionary measure, women who are pregnant, especially in their first trimester, should consider postponing travel to countries where this virus is spreading or, at a minimum, take extra precautions to avoid mosquito bites.

There is also growing evidence that this virus can cause the Guillan-Barré syndrome, a relatively rare condition characterized by the rapid-onset of a neurological illness with muscle weakness. The syndrome may develop over half a day to four weeks and it may affect the breathing muscles. While more research is underway, as a precautionary measure, travellers can minimize the risk of exposure to Zika virus by taking all necessary precautions to avoid mosquito bites. If neurological symptoms appear after visiting areas where Zika virus is present, travellers should consult their physician immediately.

Global Monitoring To Keep You Safe While You Travel

Sign up your trip to receive real-time, exclusive travel alerts to help you stay safe while away from home.