Dengue fever in Brazil - summary

Dengue fever transmission is widespread in Brazil. At present, the following states and municipalities are reporting significant transmission of this virus:

  • Minas Gerais - some decrease in cases in Araxá; most affected state in 2016
  • São Paulo - cities of Taubaté, Presidente Prudente, Lorena, São José dos Campos at risk for epidemic spread;
  • Goiás - Santa Helena de Goiás and Araguari are cities at risk;
  • Espírito Santo -decreases in dengue cases in São Mateus; other cities at risk include Alfredo Chaves, Rio Novo do Sul, Atílio Vivácqua, Apiacá and Presidente Kennedy.
  • Paraná - 88 municipalities including city of Paranaguá reporting hundreds of cases;
  • Distrito Federal (Brasília) - more than 150 cases in 4 weeks, but fewer than the same time last year.
  • Rio de Janeiro - city of Nova Friburgo reporting cases
  • Rio Grande do Norte - state ranks fourth in number of reported dengue fever cases last year.
  • Mato Grosso do Sul - risk in many municipalities
  • Mato Grosso - affected city includes Sinop

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

Advice For Travellers

The absence of reports from other areas does not mean that there is no dengue fever transmission there. The risk of exposure will vary from place to place and may be high in many localities.

All 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.