Dengue fever transmission will decrease with winter season in Brazil

The beginning of the winter season in Brazil is expected to reduce the rate of transmission of dengue fever nationwide. During this year, the state of Goiás had the highest rate of dengue cases, followed by the state of São Paulo. Another eight states had epidemic levels of dengue fever this year. They include Acre, Tocantins, Ceará, Rio Grande do Norte, Pernambuco, Minas Gerais, Paraná, and Mato Grosso do Sul.

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

Advice For Travellers

Although the overall number of cases of dengue fever is expected to decrease with the cooler temperatures of the winter season, there will still be some risk of exposure to this virus, particularly in the more tropical areas of the country. Travellers to areas where the dengue fever virus is active can reduce their risk of exposure by taking all necessary precautions to avoid mosquito bites. Many persons with dengue fever 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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