# Dengue outbreak in São Paulo, Brazil

> Live situation record from CLSTR: https://clstr.news/situations/dengue-outbreak-in-so-paulo-brazil
> Updated: 2026-09-07T03:01:42.000Z. Sources: 26. Developments: 2.

Health authorities in São Paulo have confirmed 58,683 cases of dengue since the beginning of the year, resulting in 42 confirmed deaths and 30 additional deaths under investigation. The municipality of Taubaté has recorded the highest number of disease-related deaths.

In response to the outbreak and the El Niño phenomenon, the State Health Secretariat has implemented a health preparation and response plan. This includes strengthening surveillance, identifying priority regions, and allocating over R$ 1.5 billion to 645 municipalities to bolster primary healthcare networks.

## Timeline

### 2026-09-07: São Paulo reports over 58,000 dengue cases and 42 deaths

São Paulo has recorded over 58,000 dengue cases and 42 confirmed deaths this year, prompting the state to implement emergency health response plans and allocate R$ 1.5 billion to municipal healthcare.

7 sources. https://clstr.news/cluster/so-paulo-reports-over-58000-dengue-cases-and-42-deaths

### 2026-08-26: Brazil reports West Nile fever cases and one death

Brazil reports several West Nile fever cases in São Paulo, Santa Catarina, and Piauí, including one death. Experts say the risk of a major epidemic is low as most cases are mild.

21 sources. https://clstr.news/cluster/west-nile-fever-cases-confirmed-in-brazil-1

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Cite as: Dengue outbreak in São Paulo, Brazil. CLSTR, https://clstr.news/situations/dengue-outbreak-in-so-paulo-brazil