Dengue cases in Brazil 2024

Dengue fever poses a significant public health challenge in Brazil. During the first months of 2024, the South American country reported over five million dengue cases, a higher number of infections than those observed in the whole of 2023 and a significant increase in comparison to previous years. This is the result of the cyclical nature of the disease, which flares up every two to five years, as well as of a variety of socio-economic and climate-related components.

Dengue in Latin America

Latin America is one of the regions most affected by dengue in the world, with South American countries having some of the highest dengue incidence rates reported. As of April 2024, Paraguay, Brazil, Argentina, and Peru had rates ranging between 400 and 3,000 cases per 100,000 population. These figures are influenced by the seasonal nature of the disease, where cases tend to peak at different times of the year depending on an array of regional characteristics.

Tropical diseases in Brazil

Brazil is the Latin American country with the highest number of dengue, Zika, chikungunya, and malaria infections. The South American nation is the most populated country in the region and considered the one with the highest physical exposure to vector-borne diseases, and among the most exposed to epidemics in Latin America and the Caribbean. This results from a combination of geographic and socio-economic factors relevant to the spread of these diseases.

Number of dengue cases in Brazil from 2015 to April 2024 (in 1,000s)

Characteristic	Cases in thousands
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Release date

May 2024

More information

Region

Brazil

Survey time period

2015 to April 2024

Special properties

as of the last epidemiological week of each year; considers all dengue cases: suspected, probable, confirmed, non-severe and severe cases, and deaths

Supplementary notes

*As of April 2024.

Figures have been rounded.

The source does not provide a publication date. The date given corresponds to the date of access.

The serotypes included vary from year to year.

Dengue transmission has a seasonal and cyclic component, with certain months accounting for a larger number of cases and larger outbreaks in the region usually taking place every three to five years.

Seasonality varies based on local factors.

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