In 2009, the tourist state of Bahia, Brazil, has been severely affected by dengue fever. As of 8th August 2009, the local health authorities reported more than 100,000 cases of dengue fever, representing an increase of 199% compared to the same period in 2008.
While the total number of cases over the current year is higher than previous years, the number of cases reported per week is steadily decreasing since April. The three serotypes (DEN-1, DEN-2 e DEN-3) are currently circulating, DEN-2 accounting for 84% of the cases .
The local authorities are monitoring the situation, and support and control measures are implemented, related to vector control, field and laboratory support, and public awareness.
There is no dengue vaccine. The prevention of dengue is currently based on individual protection against mosquito bites which includes wearing long-sleeved shirts and trousers tucked into socks, applying insect repellent, etc.
More information on dengue fever can be found on the ECDC fact sheet: http://ecdc.europa.eu/en/healthtopics/Pages/Dengue_Fever_Factsheet.aspx
 Secretary of Health, Bahia state, Brazil: Epidemiological update on dengue, 17 august 2009
Epidemiological Updates from ECDC