Three viruses (Zika, Dengue and Chikungunya) are all circulating in Brazil

With 91,000 people infected with the Zika virus, 802,000 infected with the dengue fever virus, and 39,000 infected with the chikungunya fever virus, all transmitted by the same mosquito that is plentiful throughout the country, there is considerable risk of exposure to at least one of these viruses when travelling in Brazil. Infection with any one of these viruses can be mild so that the infected person does not seek medical attention and is not counted in the official statistics. There may be many more infected persons in the community who are not counted.

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 any one of these viruses 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. Infection with any of these viruses can result in serious illness. Chikungunya virus infections may have long lasting health consequences. Zika virus may cause fetal abnormalities when it infects pregnant women.

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