Dire predictions for dengue fever in Ribeirão Preto, São Paulo, Brazil, in 2016

Based on the number of new dengue fever cases reported each month in 2015, city health authorities have estimated that up to 60,000 cases could occur by June this year. If the current trend continues, up to 9 percent of the city's population will have been infected.

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

Advice For Travellers

There are concerns that dengue fever will be an even greater problem in many areas of Brazil in 2016. While the risk of exposure for the general traveller will vary from place to place, the risk may be very high in some areas, e.g., Ribeirão Preto in the state of São Paulo.

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.