Yellow Fever in Brazil
Brazil experiences periodic yellow fever outbreaks in its Atlantic Forest transition zones. A 2016–2019 urban spillover threat triggered the largest vaccination campaign in the country's history.
Key Statistic
2016–2019 outbreak: 2,174 confirmed cases and 745 deaths — the largest yellow fever outbreak in Brazil in decades
Burden & Risk Factors
São Paulo state was at risk of sylvatic yellow fever reaching urban Aedes aegypti mosquito populations
Control & Response
Brazil produced and distributed over 100 million doses of fractional-dose yellow fever vaccine to contain the outbreak
Prevention
Prevention strategies for Yellow Fever vary by country context. WHO and CDC recommend that travellers and residents in Brazil follow current guidance including vaccination where available, vector control measures, and early medical consultation if symptoms develop. Always check your country''s travel health advisory before visiting Brazil.