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Outbreak Updates

09 June 2026

Brazil

Yellow fever in Brazil

As of 1 June 2026, a total of 11 confirmed yellow fever cases, including six deaths, have been reported in Brazil for 2026. Most cases (nine) were reported in Sao Paulo state. Please see our Topics in Brief article for further details on yellow fever.

Source: State Yellow fever in brief

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UK Health Security Agency

Hospital for Tropical Diseases

Liverpool School of Tropical Medicine

London School of Hygiene and Tropical Medicine

University College London Hospitals NHS Foundation Trust

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Yellow fever in Brazil

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