Ubiquitous mosquito in Brazil transmits dengue, chikungunya and Zika

The Aedes aegypti mosquito that is found extensively throughout most of Brazil has caused almost 1.5 million cases of dengue, a quarter million cases of chikungunya and approximately 210,000 Zika infections this year.

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

Advice For Travellers

The risk of exposure to these infections will vary from place to place and may be high in many localities.

All travellers to areas where these viruses are active can reduce their risk of exposure by taking all necessary precautions to avoid mosquito bites. Many persons with dengue, chikungunya or Zika infections do not seek medical care and are not reported to health authorities. There may be many more cases in the community than the reports indicate.

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